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Arithmetic Reasoning - Expert Level Question 12 – answer, explanation & discussion

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Question 12 Back to Exercise
A student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly ?

  • A 12
  • B 16 Correct
  • C 18
  • D 24
Correct Answer: Option B

Suppose the boy got x sums right and 2x sums wrong.

Then, x + 2x = 48 3x = 48 x = 16.

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