100 Most Repeated MCQs of Math MCQs - Maths Practice | PakExamPoint

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100 Most Repeated MCQs of Math MCQs and revision practice

Study 100 Most Repeated MCQs of Math through multiple-choice questions in Maths. This subtopic contains 1095 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these 100 Most Repeated MCQs of Math MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

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100 Most Repeated MCQs of Math: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

641. A man has Rs. 10,000 to invest. He invests Rs. 4000 at 5% and Rs. 3500 at 4%. In order to have a yearly income of Rs. 500, he must invest the remaining Rs. 2500 at what rate of interest?

Check answer and explanation

Answer: 6.4%

Explanation Investment at 5%: Rs. 4000 x 5% = Rs. 200 per year Investment at 4%: Rs. 3500 x 4% = Rs. 140 per year Total income so far: Rs. 200 + Rs. 140 = Rs. 340 per year Shortfall: Rs. 500 (desired income) - Rs. 340 (current income) = Rs. 160 per year Amount to invest: Rs. 2500 (remaining amount) Rate of interest required: (Rs. 160 / Rs. 2500) x 100% ≈ 6.4% So, the correct answer is: 6.4%

642. Which pair comes next in the following series? A, Z, B, Y, _____, _____?

Check answer and explanation

Answer: C, X

Explanation The pair that comes next in the series is C, X. This is a double-sequence pattern, combining letters from the beginning of the alphabet with letters from the end of the alphabet . First letter: A, B, C (moves one letter forward). Second letter: Z, Y, X (moves one letter backward).

643. Find two natural numbers whose difference is 66 and the least common multiple is 360.

دو قدرتی اعداد تلاش کریں جن کا فرق 66 ہے اور سب سے کم عام ضرب 360 ہے۔

Check answer and explanation

Answer: 24,90

Explanation Let the two numbers be x and x+66. Since the LCM is 360, there must be 5,2 and 3 as the prime factors of the two numbers. So, one pair is 24 & 90, because 90−24=66. Also, 24=2×2×2×3 90=2×3×3×5 ∴ LCM=2×2×2×3×3×5=360. So, the numbers are 24 and 90. ND5-07-2023

644. A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it?

Check answer and explanation

Answer: 12 hours

Explanation A can do the work in 4 hours, so A's work rate is 1/4 of the work per hour. B and C can do the work in 3 hours, so their combined work rate is 1/3 of the work per hour. A and C can do the work in 2 hours, so their combined work rate is 1/2 of the work per hour. Now, let's find B's work rate: B and C's combined work rate is 1/3 of the work per hour, and A and C's combined work rate is 1/2 of the work per hour. Since A's work rate is 1/4 of the work per hour, C's work rate can be found by subtracting A's work rate from the combined work rate of A and C: (1/2 - 1/4) = 1/4 of the work per hour. So, C's work rate is also 1/4 of the work per hour. Now, we can find B's work rate by subtracting C's work rate from the combined work rate of B and C: (1/3 - 1/4) = 1/12 of the work per hour. Since B's work rate is 1/12 of the work per hour, B alone will take 12 hours to complete the work.

645. In a ratio 5:13 if the antecedent is 33, what is the consequent?

Check answer and explanation

Answer: x= 85.8

Explanation C ANS: it is to note that in a fraction, the primary term of a proportion is called antecedent and the moment term is said to be consequent. Here the proportion is 5 : 13 The predecessor is 5 and the ensuing 13 antecedent is 33

646. Find the average of 2x, 6x 8x 10x, 12x7

Check answer and explanation

Answer: 22x

Explanation To find the average, you sum up all the values and then divide by the total number of values. Average = Sum of values Number of values Average = Number of values Sum of values ​ Given values: 2 𝑥 2 x , 6 𝑥 6 x , 8 𝑥 8 x , 10 𝑥 10 x , 12 𝑥 7 12 x 7 Sum of values: 2 𝑥 + 6 𝑥 + 8 𝑥 + 10 𝑥 + 12 𝑥 7 = 2 𝑥 + 6 𝑥 + 8 𝑥 + 10 𝑥 + 84 𝑥 = 110 𝑥 2 x + 6 x + 8 x + 10 x + 12 x 7 = 2 x + 6 x + 8 x + 10 x + 84 x = 110 x Number of values: 5 Now, divide the sum by the number of values: Average = 110 𝑥 5 = 22 𝑥 Average = 5 110 x ​ = 22 x So, the average of 2 𝑥 2 x , 6 𝑥 6 x , 8 𝑥 8 x , 10 𝑥 10 x , and 12 𝑥 7 12 x 7 is 22 𝑥 22 x .

647. A person washes eight cars in eighteen minutes. At this rate how many cars he can wash in three hours?

Check answer and explanation

Answer: 80

Explanation Let's break it down: Cars washed in 18 minutes = 8 Cars washed per minute = 8 / 18 To find cars washed in 3 hours (180 minutes): Cars washed in 180 minutes = (8 / 18) * 180 = 8 * 10 = 80

648. A polygon having 10 sides is called : :

Check answer and explanation

Answer: decagon

Explanation A polygon having 8 sides is called octagon A polygon having 10 sides is called decagon A polygon having 4 sides is called quadrilateral

649. Square root of 100?

Check answer and explanation

Answer: 10

Explanation 10*10=100

650. Choose the integer from the following: -2, 3.5, 1/4, 0.75, None of these

Check answer and explanation

Answer: -2

Explanation Integers are whole numbers (positive, negative, or zero) without fractions or decimals. Examples: ...,−2,−1,0,1,2,... Last verified on 08-02-2026

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