Question

A positive number is 5 times another number if 21 is added to both the number then one of the the new number become twice of the another number what are the numbers

Answer 1

Let the smaller number = x

bigger number = 5x. -----(we need this.)

if 21 is added to both; 5x+21 = 2×(x+21)

5x + 21 = 2x + 42

5x - 2x = 42 - 21

3x =. 21

x = 21/3= 7

So the positive number is = 5×7 = 35

answer is 35

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