Which of the following numbers divide exactly into $(15+\sqrt{49})$ ?
(A) 3
(B) 4
(C) 5
(D) 7
(E) 11
Which of the following numbers divide exactly into $(15+\sqrt{49})$ ?
(A) 3
(B) 4
(C) 5
(D) 7
(E) 11

Solution

$15+\sqrt{49}=15+7=22$

The only integer listed that divides 22 evenly is 11 .

ANSWER: (E)