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  9. Q87

BPSC (Bihar PCS) 2022 · Question 87 of 150

In a mixture of 70 kg, the ratio of sand and cement is 4:1. How much sand should be added to the mixture so that the ratio of sand and cement in it becomes 6:1?

Mental Ability

  1. A28 kgCorrect
  2. B30 kg
  3. C32 kg
  4. D24 kg
  5. ENone of the above/More than one of the above

Answer: A. 28 kg

Explanation

Cement = 14 kg; for 6:1, sand must be 84 kg; add 84 − 56 = 28 kg.

Source: 67th BPSC Prelims Re-Exam 2022 (Set D)

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