Question

S is a number formed by writing 8 for 88 times. What will be the remainder of this number when divided by 7?

• A. 4
• B. 5
• C. 8
• D. 1

Answer 1

The correct option is B 5

A number like aaaaaa is divisible by 7. It means 8 written $84(6\times 14)$ times is divisible by 7. Now, divide the last four digits of the number by 7 and find the remainder .
Hence, remainder obtained = $\frac{8888}{7}=5$