One year ago, the ratio of Gaurav’s and Sachin’s age was 6: 7 respectively.Four years hence, this ratio would become 7: 8. How old is Sachin ?	Pick.
A) 27 years B) 36 years C) 12 years D) 41 years E) 35 years
Let Gaurav's and Sachin's ages one year ago be 6x and 7x years respectively. Then, Gaurav's age   4 years hence = (6x + 1) + 4 = (6x + 5) years.   Sachin's age 4 years hence = (7x + 1) + 4 = (7x + 5) years.   6x+5 = 7   ____ _   7x+5 8   8(6x+5) = 7 (7x + 5)   48x + 40 = 49x + 35   x = 5.   Hence, Sachin's present age = (7x + 1) = 36 years   Answer is 36 years.
<result>B</result>
One year ago, the ratio of Gaurav’s and Sachin’s age was 6: 7 respectively.Four years hence, this ratio would become 7: 8. How old is Sachin ?