Question

A positive number is 5 time another number. If 21 is added to both the numbers, then one

of the new numbers become twice of other new numbers. Find the original numbers.
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Answer 1

Answer:

7 and 35

Step-by-step explanation:

Let the one positive number be x and other y.

According to the given condition,

y=5x ...(1)

According to the second condition,

y+21 = 2(x+21) ...(2)

Let put y=5x in equation (2),

y+21 = 2(x+21)

=> 5x+21 = 2x+42

=> 5x-2x = 42-21

=> 3x = 21

=> x = 7

Put x=7 in equation (1),

y=5x

=> y=5×7

=> y=35