Question 113

45% of a number is less than its 64% by 38. What is 20% of that number?

Solution

Let the number be equal to X.
Hence, 45% of the number is 0.45X
64% of the number is 0.64X

The difference is 0.19X and it equals 38
So, X = 38/0.19 = 200

Hence, 20% of the number equals 20% of 200 = 40

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