adplus-dvertising
frame-decoration

Question

Find a number ‘a’ between 0 and 9 such that ‘a’ is congruent to 7^1000 mod 10.

a.

2

b.

1

c.

3

d.

4

Answer: (b).1

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. Find a number ‘a’ between 0 and 9 such that ‘a’ is congruent to 7^1000 mod 10.