A boy was asked to multiply a certain number by 25. He multiplied it by 52 and got his answer more than the correct one by 324. The number to be multiplied was:
A
12
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B
15
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C
25
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D
52
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Solution
The correct option is A12 Suppose the number to be multiplied =x As per Question ⇒52×x=25×x+324 ⇒52x=25x+324 ⇒52x−25x=324 ⇒27x=324 x=12 Hence, option 'A' is correct.