All Free Mathematics MCQs with Answers
Every Mathematics question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,551 questions · page 49 of 78
- A. Rs.3000
- B. Rs.3600
- C. Rs.2400
- D. Rs.4000
- E. None of these
Explanation: Let P and Q together have x rupees, so R has (2/3)x rupees. Thus x + (2/3)x = Rs.6000, giving (5/3)x = Rs.6000 and R = (2/3) x Rs.3600 =…
Correct answer: Rs.2400- A. Rs.849.40
- B. Rs.877.40
- C. Rs.901.60
- D. Rs.815.20
- E. None of these
Explanation: Six kilograms of flour cost 6 x Rs.20.50 = Rs.123.00, and this equals the cost of 2 kg of rice, so 1 kg of rice costs Rs.61.50.
Correct answer: Rs.877.40- A. 400
- B. 500
- C. 600
- D. 20
Explanation: For each of 20 boys, any one of 25 girls can be selected, so the multiplication principle gives 20 x 25 = 500 boy-girl selections.
Correct answer: 500- A. 21
- B. 12
- C. 9
- D. 108
Explanation: Each of the 9 trousers can be paired with any of the 12 shirts, so the multiplication principle gives 9 x 12 = 108 different selections.
Correct answer: 108- A. 6 1/8
- B. 5 3/4
- C. 6 3/4
- D. 5 7/8
Explanation: Interpreting the expression as 6 x 5/8 ÷ 5/8 - 1/8, first 6 x 5/8 = 30/8. Dividing by 5/8 gives (30/8) x (8/5) = 6, and 6 - 1/8 = 5 7/8.
Correct answer: 5 7/8- A. 1
- B. 2
- C. 69/28
- D. 66/17Computer Online Quiz
Explanation: The numerator is 22 x 495 + 891 x 44 = 10890 + 39204 = 50094. The denominator is 33 x 176 + 55 x 264 = 5808 + 14520 = 20328, so the…
Correct answer: 69/28- A. 1 17/38
- B. 1 38/17
- C. 2 38/17
- D. None of these
Explanation: The numerator is 62.25/2.5 + 12.5/0.5 = 24.9 + 25 = 49.9. The denominator is 0.75 x 9 + 3.5 x 3.5 = 6.75 + 12.25 = 19, giving 49.9/19 =…
Correct answer: None of these- A. 9
- B. 3
- C. 0.3
- D. 0.03
Explanation: The product of the fixed decimals is 0.003 x 0.0003 = 0.0000009. Therefore, ? = 0.00000027 / 0.0000009 = 0.3.
Correct answer: 0.3- A. 150 1/3
- B. 150 2/3
- C. 149 2/3
- D. 149 1/3
Explanation: Convert the mixed numbers: 6 2/3 = 20/3, 9 3/5 = 48/5, and 2 1/3 = 7/3.
Correct answer: 150 2/3- A. 60
- B. 120
- C. 13
- D. 61
Explanation: Use the order of operations: 180 / 3 = 60, then 5 x 12 / 60 = 1, so 60 + 1 = 61.
Correct answer: 61- A. 0.228
- B. 0.456
- C. 0.684
- D. 1.0
Explanation: Apply the difference of squares: 0.456² - 0.228² = (0.456 - 0.228)(0.456 + 0.228).
Correct answer: 0.228- A. 1
- B. 2
- C. 3
- D. 5
Explanation: Interpret 1 1/3 as 4/3 and 3 ?/4 as 3 + ?/4. Then 8/15 ÷ 4/3 = 2/5, so (2/5)(3 + ?/4) = 1.5 = 3/2; hence 3 + ?/4 = 15/4 and ? = 3.
Correct answer: 3- A. 12
- B. 14
- C. 16
- D. 18
Explanation: Calculate 79.98 / 12.51 x 2.49. The quotient is approximately 6.3917, and 6.3917 x 2.49 is approximately 15.91, which rounds to 16, option…
Correct answer: 16- A. 3180
- B. 3200
- C. 3120
- D. 3210
Explanation: Since 3584 = 256 x 14, √3584 = 16√14, which is approximately 59.87. Then 59.87 x 52.034 is approximately 3115, whose nearest listed value…
Correct answer: 3120- A. 1580
- B. 1680
- C. 1780
- D. 1880
Explanation: Evaluate the quotient first: 58978 / 363.94 is approximately 162.05. Multiplying by 11.02 gives approximately 162.05 x 11.02 = 1785.8, so…
Correct answer: 1780- A. 383
- B. 372
- C. 380
- D. 374
Explanation: Compute the product using 2.9928 = 3 - 0.0072: 2.9928 x 66.84 = 200.52 - 0.481248 = 200.038752.
Correct answer: 383- A. 1.4
- B. 1.6
- C. 1.5
- D. 1.2
Explanation: The numerator is (180/37) x 14.8 = 72 because 14.8/37 = 0.4. The denominator is (17/60.1) x 180.30 = 17 x 3 = 51, so the ratio is 72/51 =…
Correct answer: 1.4- A. 1109300
- B. 1109400
- C. 1108400
- D. 1108300
Explanation: Multiply 108 x 107 = 11556, then 11556 x 96 = 1,109,376. Rounding to the nearest hundred gives 1,109,400 because the tens digit is 7, so…
Correct answer: 1109400- A. 34
- B. 35
- C. 36
- D. 37
Explanation: Add the fractional parts and whole parts: 25 2/5 + 8 4/5 + 4/5 = 25 + 8 + (2/5 + 4/5 + 4/5) = 33 + 10/5 = 35. Thus option b is correct.
Correct answer: 35- A. 1
- B. 3/2
- C. 2
- D. 5/2
Explanation: The numerator is 64 + 9 + 9 = 82, while the denominator is 2 x 20 + 1 = 41. Therefore 82 / 41 = 2, giving option c.
Correct answer: 2