Mathematics Solved Model Past Paper 2023 PDF

Part – 1 English

The Antonym of Alien is?
Answer: Native
 Change the voice: Let us play together.
Answer: It is suggested that we should play together.
 Idiom: “donkey years” means ______?
Answer: Very long period
I have been staying in this hotel _____ three days.
Answer: For
The Synonym of Harmony is?
Answer: Both A and B (Consistency and Symmetry)
 Several ducks had dark green heads. Here ‘Several’ is an example of ______?
Answer: Adjective
 ____ of locusts attacked the crops.
Answer: Swarm
The Plural of Goose is?
Answer: Geese
Running fast they caught the last bus. Here ‘Running fast’ is an example of ______?
Answer: Adjective phrase
Change the narration: Shahid’s brother said to him, “Please wait for me.”
Answer: Shahid’s brother requested him to wait for him.
The Antonym of Denounce is?
Answer: Both A and B (Defend and Commend)
Choose the correct spelling:
Answer: Exercise
 Select the correctly spelled word:
Answer: Accumulate
The Synonym of Artificial is?
Answer: Both A and B (Man Made and Unreal)
Vanity is often noticeable in a great leader. Here synonym of Noticeable is?
Answer: Both A and B (Visible and Prominent)
God helps those who help ________?
Answer: Themselves
 Look at the picture _____ the wall.
Answer: On
 Change the narration: He said to me, “I was ill”.
Answer: He told me that he had been ill.
The hero of the novel “The Prisoner of Zenda” is ______?
Answer: Rudolf Rassendyl
 Choose the correct spelling:
Answer: Riddle
The fire alarm rang ________ yesterday’s meeting.
Answer: During
 The Antonym of Hypocritical is?
Answer: Sincere
The Antonym of Accept is?
Answer: Both B and C (Reject and Refuse)
 The poem “The Solitary Reaper” is composed by _____?
Answer: William Wordsworth

Part-I: Teaching Methodology

 What is the process of putting information into the memory?
Answer: Encoding
Which system involves the teacher, student, and environment as a 3D process?
Answer: Social Education System
Which group technique is used to create many new ideas to solve a problem?
Answer: Brainstorming
What term refers to changes in the way a person thinks?
Answer: Cognition
Which organization controls and regulates universities in Pakistan?
Answer: Higher Education Commission (HEC)
Which strategy is used to make students more active in class?
Answer: Creating active classroom
Who introduced the “Laws of Learning”?
Answer: Edward Thorndike
 What is the first step in developing a curriculum?
Answer: Identifying issues/problems (Need analysis)
What kind of tests are GRE, SAT, and IELTS?
Answer: Standardized tests
Which objectives translate big goals into specific actions?
Answer: Tactical Objectives
 What do we call a group of individuals living together as a distinct group?
Answer: Organization
 Who is known as the father of activity-based curriculum?
Answer: John Dewey
 What is the process of changing existing mental ideas (schemas) called?
Answer: Accommodation
 What is the main job of a school counselor?
Answer: Creating a positive environment
What type of reinforcement happens in a previously conditioned organism?
Answer: Negative reinforcement
What is the process of giving numbers to a performance called?
Answer: Measurement
 Which concept gives a purpose to teaching and helps discuss success or failure?
Answer: Aims
Besides research, what else is essential for improving a curriculum?
Answer: Periodic evaluation
What is it called when you collect feedback to see if a course was successful?
Answer: Course Evaluation
 What is the nature of an assessment?
Answer: Qualitative
What is an assessment done before teaching to set a baseline called?
Answer: Pre-assessment
 Which approach asks groups of students to solve unstructured, hard problems?
Answer: Problem-Based Learning
 Which conditioning sees behavior as a result of external triggers?
Answer: Operant and Classical Conditioning
 Which method ensures every student gets equal guidance opportunities?
Answer: Group guidance
If a teacher comments on a certain criterion while assessing students, the test is called…?
Answer: Formative test

Part – II Mathematics 

Q: Evaluate ∫₀^∞ 1/(x−3)^(7/3) dx
A:
یہ integral x=3 پر undefined ہے
 Answer: Divergent
Q: Reduce BVP to Fredholm integral equation
A: y(x) = ∫₀¹ G(x,t)(1 − ty(t)) dt
Q: Find Lagrange interpolation polynomial
A: Final polynomial:
P(x) = x³ − x² − x + 1
Q: Solve dy/dx + y = x²y²
ASubstitute: v = 1/y
⇒ dv/dx − v = -x²
 Solution:
v = eˣ(∫ -x² e⁻ˣ dx + C)
Q: Find asymptote of
2xy + 2y = (x−2)²
A: Asymptote:
y = x/2 − 1
Q: Solve
(1 − x²) dy/dx − 2xy = 0
A: y = C/(1 − x²)
Q: Solve PDE
∂²u/∂x² = 16 ∂u/∂t
A: u = Σ e^(-16n²t) sin(nx)
A: Evaluate ∫₀^∞ e⁻³ˣ dx
A: = 1/3
Q: Distance between (4,−2) and line 3x+4y−6=0
A: d = 2/5
 A man has 42 blue socks, 15 red socks, 24 black socks in one box. It is totally dark and he cannot recognize the colors. How many socks does he have to take out of the box to be sure to have at least two black socks?
Answer: 59
Solution:
Worst case, he picks all blue and red socks first: 42 + 15 = 59.
To get at least 2 black socks, he needs 42 + 15 + 2 = 59 socks. 
At a conference, 10 members shook hands with each other before the meeting. How many handshakes occurred?
Answer: 45
Solution:
Number of handshakes = n(n-1)/2 = 10×9/2 = 45.
 If x/4 = y/2, then?
Answer: x = 2y
Solution: Multiply both sides by 4: x = 2y.
50 miles is equal to how many kilometers?
Answer: 80 km
Solution: 1 mile ≈ 1.6 km → 50×1.6 = 80 km.
A drink contains 20% mango juice and the rest is apple juice. What is the ratio of mango juice to apple juice?
Answer: 1:4
Solution: Mango juice = 20%, Apple juice = 80% → Ratio = 20:80 = 1:4.
 How many zeros are there in 1 billion?
Answer: 9
Solution: 1 billion = 1,000,000,000 → 9 zeros.
 The day after the day after tomorrow is four days before Monday. What day is it today?
Answer: Tuesday
Solution:” Four days before Monday” is Thursday. That day is the day after the day after tomorrow. So, if the day after the day after tomorrow is Thursday, today must be Tuesday.
What is the smallest number of ducks that could swim in this formation: two ducks in front of a duck, two ducks behind a duck, and a duck between two ducks?
Answer: 3
Solution: Place 3 ducks: middle duck has 2 in front and 2 behind in the formation → minimum 3 ducks.
Aslam has 1.5 times as many as Akram, and Akram has 1.5 times as many as Abdul. Altogether they have 76. How many does each have?
Answer: Aslam 36, Akram 24, Abdul 16
Solution: Let Abdul = x → Akram = 1.5x, Aslam = 1.5×1.5x = 2.25x → x + 1.5x + 2.25x = 76 → 4.75x = 76 → x = 16 → Akram = 24, Aslam = 36.
Which of the following can be arranged into a 5-letter English word: H R G S T, R I L S A, T O O M B D, W Q R G S?
Answer: R I L S A → ARILS
Solution: Letters R I L S A can form the word ARILS.
PEACH is to HCAEP. The number 26541 should be?
Answer: 14562
Solution: Number order follows reverse of letters. PEACH → HCAEP → 2→1 becomes 1→4→5→6→2 = 14562.
 If 3z/2 + 4z/2 + 5z/2 = 36, what is the value of z?
Answer: 6
Solution: Sum = (3+4+5)z/2 = 12z/2 = 6z → 6z = 36 → z = 6.
Find the missing letter: A, D, H, M, S, ____?
Answer: Z
Solution: Differences in alphabet positions: A→D (+3), D→H (+4), H→M (+5), M→S (+6), next = S +7 → Z.
If the length of a square-shaped crop field is 31 meters, what will be its perimeter?
Answer: 124 meters
Solution: Perimeter = 4×side = 4×31 = 124 meters.
A person washes 8 cars in 18 minutes. At this rate, how many cars can he wash in 3 hours?
Answer: 80
Solution: 3 hours = 180 minutes. Rate = 8/18 cars per min → Cars in 180 min = 8/18×180 = 80 cars.
There are 100 boys and 900 girls in a school. 50% of boys and 40% of girls are present. Total number of students present?
Answer: 410
Solution: Boys present = 50% of 100 = 50, Girls present = 40% of 900 = 360 → Total = 50+360 = 410.
My mother is the sister of your brother. What relation am I to you?
Answer: Nephew
Solution: Mother is sister of your brother → You are her nephew.
 25 is 125% of what number?
Answer: 20
Solution: 125% of x = 25 → x = 25×100/125 = 20.
 What is the total cost if a Rs. 40 item is taxed at 5%?
Answer: 42
Solution: Tax = 5% of 40 = 2 → Total cost = 40+2=42.
 The average of first 10 odd numbers is?
Answer: 10
Solution: First 10 odd numbers: 1,3,5,…,19 → Sum = 100 → Average = 100/10 = 10.
 CAACCAC is to 3113313 as CACAACAC is to?
Answer: 31311313
Solution: C=3, A=1, map each letter accordingly.
 If a right-angled triangle has legs of length 6 cm and 8 cm, the hypotenuse?
Answer: 10 cm
Solution: Hypotenuse² = 6²+8² = 36+64=100 → Hypotenuse = √100=10.
 Milk is to glass as letter is to?
Answer: Envelope
Solution: Letter is contained in envelope like milk in glass.
 X and Y are children of Z. Z is father of X, but Y is not son of Z. What is Y to Z?
Answer: Daughter
Solution: Z is father of X. Y is not son → Y is daughter.
Which of the following is closest to 29.8 × 9.8?
Answer: 300
Solution: Approximate 29.8≈30, 9.8≈10 → 30×10=300.
 In-order traversal of tree E A C K F H D B G, preorder traversal?
Answer: FAEKCDHGB
Solution: Apply preorder traversal rules on the tree.
How many distinct arrangements can be made from the letters of “BOOK”?
Answer: 12
Solution: BOOK → 4 letters, O repeats twice → 4!/2! = 12 arrangements.
Three students X, Y, Z in a 100m race. X faster than Y, Z faster than X → Who wins?
Answer: Z wins
Solution: Z > X > Y → Z wins.
 Insert the missing letter: D, K, G, N, ____ Q, M, T.
Answer: J
Solution: Pattern alternates between letters → J fits the missing position.
If a doctor gives 3 pills to take one every half hour, how long until all are taken?
Answer: 1 hour
Solution: Take first pill at 0 min, second at 30 min, third at 60 min → Total 1 hour.
 Average of 4 consecutive odd numbers is 24. Largest number?
Answer: 27
Solution: Let numbers = n, n+2, n+4, n+6 → Average = (4n+12)/4= n+3=24 → n=21 → Numbers = 21,23,25,27 → Largest = 27.
A box has 6 black, 4 red, 2 white, 3 blue shirts. Probability of picking at least 1 red in 4 shirts?
Solution: Total shirts = 15. Non-red shirts = 11.
Ways to pick 4 non-red shirts = 11C4 = 330
Total ways to pick 4 shirts = 15C4 = 1365
Probability of at least 1 red = 1 – (330 / 1365) = 1035 / 1365 = 69/91
Answer: 69/91
Shahid taller than Usman, Ali shorter than Shahid. Which statement is accurate?
Answer: It is impossible to tell whether Ali or Usman is taller.
Solution: No info about Usman vs Ali.
Complete the series: 4, 9, 16, 25, _____?
Answer: 36
Solution: Series of squares: 2²,3²,4²,5²,6² → Next = 6² =36.
Two apples and three mangoes cost Rs. 86. Four apples and one mango cost Rs. 112. Cost of one apple?
Solution: Let the cost of one apple = A, one mango = M
From the problem:
2A + 3M = 86
4A + 1M = 112
From the second equation: M = 112 – 4A
Substitute M into the first equation:
2A + 3(112 – 4A) = 86
2A + 336 – 12A = 86
-10A + 336 = 86
-10A = 86 – 336
-10A = -250
A = 25
Answer: 25
√22 + √6 + √9 = ?
Answer: 10.14
Solution: √22 ≈4.69, √6 ≈2.45, √9=3 → Sum≈4.69+2.45+3=10.14.
 A train 100 m long running at 30 km/h. Time to pass 80 m bridge?
Answer: 21.6 sec
Solution: Speed =30 km/h=8.33 m/s → Distance =100+80=180 m → Time=180/8.33≈21.6 sec.
 A boy is “son of the daughter of the father of my uncle.” How is he related?
Solution:
  • Father of my uncle → Girl’s grandfather
  • Daughter of grandfather → Girl’s mother or aunt
  • Son of that daughter → Girl’s brother or cousin
Answer: Brother (or sometimes cousin) of a girl.
Zain facing NW, turns 90° CW, 180° ACW, 90° CW. Final direction?
Answer: South-East
Solution: NW→90°CW→NE, 180°ACW→SW, 90°CW→SE.
72496 →1315, 62134 →97, 85316 →167. Then 28439 → ?
Answer: 1412
Solution: Split digits: sum first 3, sum last 2 → 28439 → 2+8+4=14, 3+9=12 → 1412.
 If a and b are integers, which is NOT necessarily integer?
Solution:
  • a ÷ b is not always an integer.
  • Example: a = 1, b = 2 → a/b = 1/2, which is not an integer.
Answer: a ÷ b
Next number in series: 1,2,2,4,4,6,8,8,16, ?
Answer: 16
Solution: Pattern: repeated number then next even → Next=16.
 Average of 13 numbers is 60. First 7 average 57, last 7 average 61. Find 7th number?
Solution:
  • Total sum of 13 numbers = 13 × 60 = 780
  • Sum of first 7 numbers = 7 × 57 = 399
  • Sum of last 7 numbers = 7 × 61 = 427
  • 7th number is counted in both sums, so:
    7th number = 399 + 427 − 780 = 46
Answer: 46
Months have 30 or 31 days, how many have at least 28 days?
Answer: 12
Solution: Every month has ≥28 days.
Aslam moves 3 km east, then 6 km north, then 5 km east. Distance from start?
Answer: 10 km
Solution: Displacement = √((3+5)²+6²)=√(64+36)=√100=10 km.
 Employee wages Rs.30/hr upto 40 hrs. Overtime 2×wage. Paid Rs.1680. How many overtime hours?
Answer: 8 hrs
Solution: Regular pay=30×40=1200 → Overtime=1680−1200=480 → Overtime hours=480/(2×30)=8.
Expression true for −2 < x < 7?
Answer: {x | −2 < x < 7}
Solution: Interval notation for numbers between −2 and 7.
A is B’s sister, C is B’s mother, D is C’s father, E is D’s mother. How is A related to D?
Answer: Granddaughter
Solution: D→C→B→A → A is granddaughter of D.
Express 15 as percentage of 60?
Answer: 25%
Solution: 15/60×100 =25%.
Ali is very hungry, his stomach is completely empty. He has many cookies and eats one by one. How many cookies can Ali eat in his completely empty stomach?
Solution:
  • When the stomach is completely empty, he can eat only one cookie.
  • After eating one, his stomach is no longer empty, so the condition is met only for the first cookie.
Answer: 1

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