Question 44

A boy was asked to multiply a number by 25. He instead multiplied the number by 52 and got the answer 324 more than the correct answer. The number to be multiplied was

Solution

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Let the original number be x.

When 52 is multiplied to x, it is greater than 25 multiplied to x by 324

ie. 52x - 25x = 324

So, 27x = 324

x = 324/27 = 12

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