Question

What is the sum of the numbers between 40 and 50, that are exactly divisible by 7.

• A. 92
• B. 93
• C. 91
• D. 90

Answer 1

The correct option is C

91

The numbers between 40 and 50 that are exactly divisible by 7 ( those numbers that can be divided by 7, without leaving a remainder) are 42 and 49.

$42=7\times 6$

$49=7\times 7$

The sum of 42 and 49 is 91

$42\underset{–}{+49}\underset{–}{91}$

Hence "91" is the sum.