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Mathematics MCQs with Answers

Mathematics and quantitative reasoning questions appear in many job and entry tests. Practice arithmetic, algebra, percentages, ratios, averages, profit and loss, and geometry. Attempt timed MCQ tests to improve both your speed and accuracy.

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Q481. What is 12 x 23?

  1. 326
  2. 306
  3. 276
  4. 256
Show answer and explanation

Correct answer: C. 276

12 x 23 = 276.

Q482. Simplify: (7+1)^2 - (7-1)^2

  1. 14
  2. 49
  3. 30
  4. 28
Show answer and explanation

Correct answer: D. 28

Using (p+q)^2-(p-q)^2 = 4pq = 4a.

Q483. What is the value of pi up to two decimal places?

  1. 3.16
  2. 3.41
  3. 3.12
  4. 3.14
Show answer and explanation

Correct answer: D. 3.14

pi = 3.14159...

Q484. If CP is Rs. 400 and SP is Rs. 420, find the profit percentage.

  1. 15%
  2. 5%
  3. 1%
  4. 10%
Show answer and explanation

Correct answer: B. 5%

Profit = 20; Profit% = (20/400) x 100 = 5%.

Q485. A bus covers 180 km in 6 hours. What is its average speed in km/h?

  1. 40
  2. 25
  3. 35
  4. 30
Show answer and explanation

Correct answer: D. 30

Speed = 180/6 = 30 km/h.

Q486. Find the total surface area of a cube of side 7 cm (in sq cm).

  1. 343
  2. 196
  3. 294
  4. 42
Show answer and explanation

Correct answer: C. 294

TSA = 6 x side^2 = 294.

Q487. What is the average of 39, 12, 41, 25, 48?

  1. 34
  2. 33
  3. 35
  4. 32
Show answer and explanation

Correct answer: B. 33

Sum = 165; average = 165/5 = 33.

Q488. What is the HCF of 28 and 49?

  1. 14
  2. 8
  3. 9
  4. 7
Show answer and explanation

Correct answer: D. 7

The greatest common divisor of 28 and 49 is 7.

Q489. If 9x + 17 = 134, find x.

  1. 13
  2. 12
  3. 15
  4. 14
Show answer and explanation

Correct answer: A. 13

9x = 117, so x = 13.

Q490. If 4 kg of sugar costs Rs. 120, find the cost of 10 kg (in Rs.).

  1. 310
  2. 270
  3. 300
  4. 330
Show answer and explanation

Correct answer: C. 300

Cost of 1 kg = 30; for 10 kg = 300.

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