Question

The sum of the numbers divisible by 7 between the 100 to 300 will be

• A. $5586$
• B. $5086$
• C. $5588$
• D. none of these

Answer 1

The correct option is A $5586$

Number divisible by 7 between 100 and 300 are $105,112,119,...............294$
Clearly this is an A.P with common difference 7.
$\therefore$ Number of terms, $n=\frac{294-105}{7}+1=28$
Thus, the required summation is $=\frac{28}{2}(105+294)=5586$
Hence, option 'A' is correct.