Basic Maths and Reasoning MCQs (page 181 of 212)
Percentages, ratios, averages, profit and loss, speed and time, number series and simple logical reasoning, with the working shown for every answer.
4,221 questions. Select an option to check your answer, or open "Show answer". Showing 3601–3620.
- 3601.
Ali is 12 years older than Sara. The sum of their ages is 80. How old is Ali?
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Answer: C. 46
Sara = x, Ali = x + 12. 2x + 12 = 80, so x = 34 and Ali = 46.
- 3602.
Ali is 8 years older than Sara. The sum of their ages is 68. How old is Ali?
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Answer: C. 38
Sara = x, Ali = x + 8. 2x + 8 = 68, so x = 30 and Ali = 38.
- 3603.
Ali is 12 years older than Sara. The sum of their ages is 74. How old is Ali?
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Answer: C. 43
Sara = x, Ali = x + 12. 2x + 12 = 74, so x = 31 and Ali = 43.
- 3604.
Ali is 9 years older than Sara. The sum of their ages is 25. How old is Ali?
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Answer: C. 17
Sara = x, Ali = x + 9. 2x + 9 = 25, so x = 8 and Ali = 17.
- 3605.
Ali is 11 years older than Sara. The sum of their ages is 21. How old is Ali?
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Answer: C. 16
Sara = x, Ali = x + 11. 2x + 11 = 21, so x = 5 and Ali = 16.
- 3606.
Ali is 7 years older than Sara. The sum of their ages is 65. How old is Ali?
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Answer: C. 36
Sara = x, Ali = x + 7. 2x + 7 = 65, so x = 29 and Ali = 36.
- 3607.
Ali is 9 years older than Sara. The sum of their ages is 45. How old is Ali?
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Answer: C. 27
Sara = x, Ali = x + 9. 2x + 9 = 45, so x = 18 and Ali = 27.
- 3608.
Ali is 8 years older than Sara. The sum of their ages is 40. How old is Ali?
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Answer: C. 24
Sara = x, Ali = x + 8. 2x + 8 = 40, so x = 16 and Ali = 24.
- 3609.
Ali is 15 years older than Sara. The sum of their ages is 61. How old is Ali?
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Answer: C. 38
Sara = x, Ali = x + 15. 2x + 15 = 61, so x = 23 and Ali = 38.
- 3610.
Ali is 10 years older than Sara. The sum of their ages is 74. How old is Ali?
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Answer: C. 42
Sara = x, Ali = x + 10. 2x + 10 = 74, so x = 32 and Ali = 42.
- 3611.
Ali is 13 years older than Sara. The sum of their ages is 91. How old is Ali?
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Answer: C. 52
Sara = x, Ali = x + 13. 2x + 13 = 91, so x = 39 and Ali = 52.
- 3612.
Ali is 9 years older than Sara. The sum of their ages is 39. How old is Ali?
Show answer
Answer: C. 24
Sara = x, Ali = x + 9. 2x + 9 = 39, so x = 15 and Ali = 24.
- 3613.
Ali is 9 years older than Sara. The sum of their ages is 83. How old is Ali?
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Answer: C. 46
Sara = x, Ali = x + 9. 2x + 9 = 83, so x = 37 and Ali = 46.
- 3614.
Ali is 12 years older than Sara. The sum of their ages is 86. How old is Ali?
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Answer: C. 49
Sara = x, Ali = x + 12. 2x + 12 = 86, so x = 37 and Ali = 49.
- 3615.
Ali is 10 years older than Sara. The sum of their ages is 36. How old is Ali?
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Answer: C. 23
Sara = x, Ali = x + 10. 2x + 10 = 36, so x = 13 and Ali = 23.
- 3616.
Ali is 4 years older than Sara. The sum of their ages is 14. How old is Ali?
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Answer: C. 9
Sara = x, Ali = x + 4. 2x + 4 = 14, so x = 5 and Ali = 9.
- 3617.
Ali is 5 years older than Sara. The sum of their ages is 59. How old is Ali?
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Answer: C. 32
Sara = x, Ali = x + 5. 2x + 5 = 59, so x = 27 and Ali = 32.
- 3618.
Ali is 12 years older than Sara. The sum of their ages is 50. How old is Ali?
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Answer: C. 31
Sara = x, Ali = x + 12. 2x + 12 = 50, so x = 19 and Ali = 31.
- 3619.
Ali is 12 years older than Sara. The sum of their ages is 44. How old is Ali?
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Answer: C. 28
Sara = x, Ali = x + 12. 2x + 12 = 44, so x = 16 and Ali = 28.
- 3620.
Ali is 12 years older than Sara. The sum of their ages is 56. How old is Ali?
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Answer: C. 34
Sara = x, Ali = x + 12. 2x + 12 = 56, so x = 22 and Ali = 34.