Question

Present ages of henna and sonal are 15 years and 20 years respectively. After how many years the ratio of their aged will be 6:7

Answer 1

Answer:

15 more years

Step-by-step explanation:

Let the number of years in question be x.

Then Henna will be 15 + x years and Sonal will be 20 + x years.

Since the ratio is to be 6:7, we have:

( 15 + x ) / ( 20 + x ) = 6 / 7

=> 7 ( 15 + x ) = 6 ( 20 + x )

=> 105 + 7x = 120 + 6x

=> x = 15.