A student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly ?	Choices:
A) 12 B) 16 C) 18 D) 24 E) 26

Rationale: "explanation : suppose the boy got x sums right and 2 x sums wrong . then , x + 2 x = 48 3 x = 48 x = 16 . answer : b"
Answer: B