Ques:- Find out the wrong number in the series:
5, 15, 30, 135, 405, 1215, 3645
5, 15, 30, 135, 405, 1215, 3645
A. 15
B. 30
C. 405
D. 3645
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:- The largest natural number by which the product of three consecutive even natural numbers is always divisible is
A. 16
B. 24
C. 48
D. 96
Ques:- What was the day of the week on 28th February, 1995?
A. Monday
B. Tuesday
C. Wednesday
D. Thursday