Ques:- What percentage of numbers from 1 to 70 have squares that end in the digit 1?
A. 1
B. 14
C. 20
D. 21
Ques:- Which one of the following is the number by which the product of 8 consecutive integers is divisible?
A. 4!
B. 6!
C. 7!
D. 8!
E. All of these