Q50
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 ?
A.
12
B.
16
AnswerC.
18
D.
24
Answer: Option B
Solution
Answer: Option B
Solution:
Suppose the boy got x sums right and 2x sums wrong.Then, x + 2x = 48 ⇔ 3x = 48 ⇔ x = 16.