A student got twice as many sums wrong as he got right. If he attempted 36 sums in all, how many did he solve correctly ?  Choose the correct choice from the following choices
A) 12
B) 16
C) 18
D) 24
E) 26
Explanation:   Suppose the boy got x sums right and 2x sums wrong.   Then, x + 2x = 36 3x = 36 x = 12.   12nswer:12
<result>A</result>
A student got twice as many sums wrong as he got right. If he attempted 36 sums in all, how many did he solve correctly ?