When a number M is divided by 7, the reminder is 6. What is the reminder if the square of M is divided by 7?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 1.
As we know that
Dividend = Divisor * Quotient + remainder
According to the question
M = 7 * Q + 6
Let the number M = 20 which is divided by 7 with a remainder 6
Now, M2 = 202 = 400 / 7 = remainder = 1