Number System

SSC CGL · Quantitative Aptitude · 97 practice questions with answers and explanations: 35 Easy, 34 Medium, 28 Hard.

Sample questions

Sample Easy question 1

Is 246 divisible by 3?

  1. Yes
  2. No
  3. Only by 9, not 3
  4. Cannot be determined
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Answer: A. The digit sum of 246 is 12, which is divisible by 3, so 246 is divisible by 3.

Sample Medium question 2

How many multiples of 6 are there between 1 and 300?

  1. 45
  2. 48
  3. 50
  4. 52
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Answer: C. 300/6 = 50.

Sample Hard question 3

The product of two numbers is 2016 and their HCF is 12. Find their LCM.

  1. 162
  2. 165
  3. 168
  4. 171
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Answer: C. LCM = product/HCF = 2016/12 = 168.

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