Question

On dividing a number by 7, we get 1 as remainder. What will be the remainder when the square of the number is divided by 7?
3
5
1​

Answer 1

Answer:

7

Step-by-step explanation:

let the no. be x...

x/7=1

x=1*7

x=7

square of x that is square of 7 as x=7...

49

49/7=7

answer is 7