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

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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