In 10 years, A will be twice as old5as B was 10 years ago. If A is now 8 years older than B, the present age of B is  Choose the correct choice from the following choices
A) 35
B) 37
C) 38
D) 41
E) 42

Rationale: "explanation : let b ' s age = x years . then , as age = ( x + 8 ) years . ( x + 8 + 10 ) = 2 ( x — 10 ) hence x = 38 . present age of b = 38 years answer : option c"
Answer: C