Class 5 basics

Algebra Level 2

Roy had to do a multiplication. Instead of taking 35 as one of the multipliers, he took 53. As a result, the product went up by 540. What was the other multiplier?


The answer is 30.

Armain Labeeb by Armain Labeeb , 20, Bangladesh

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1 solution

Armain Labeeb
Jul 11, 2016

Let the other multiplier be x x . She was expected to find the value of 35 x 35x . Instead, she found the value of 53 x 53x .

The difference between the value that she got ( 53 x 53x ) and what she was expected to get ( 35 x 35x ) is 540 540 .

53 x − 35 x = 540 ( 53 − 35 ) x = 540 18 x = 540 x = 30 \begin{aligned}53x - 35x& = 540 \\(53 - 35)x &= 540 \\18x&=540\\ x &= \boxed{30}\end{aligned}

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