Multiple choice

Average of A, B and C is 32. A : B = 1 : 4 and A + B = 60. Find B - C.

  1. 12

  2. 16

  3. 24

  4. 26

  5. 28
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A Correct answer
Explanation

Average of A, B, C is 32, so A+B+C = 96. A:B = 1:4 and A+B = 60, so A=12, B=48. Then 12+48+C = 96, so C=36. B-C = 48-36 = 12.

AI explanation

Since the average of A, B and C is 32, their sum (A + B + C) equals 96. Given A + B = 60, we find C = 96 - 60 = 36. Using the ratio A : B = 1 : 4, A is 12 and B is 48. Therefore, B - C = 48 - 36 = 12.

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