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Ques:- Find out the wrong number in a given series.
6, 13, 18, 25, 30, 37, 40
6, 13, 18, 25, 30, 37, 40
A. 25
B. 30
C. 37
D. 40
Ques:- Find out the wrong number in a given series.
2, 3, 6, 15, 52.5, 157.5, 630
2, 3, 6, 15, 52.5, 157.5, 630
A. 6
B. 15
C. 52.5
D. 157.5
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