Ques:- Find out the wrong number in each sequence:
22, 33, 69, 99, 121, 279, 594
22, 33, 69, 99, 121, 279, 594
A. 594
B. 279
C. 121
D. 33
Ques:- Five years ago, the total of the ages of a father and his son was 40 years. The ratio of their present ages is 4 : 1. What is the present age of the father?
A. 20 years
B. 30 years
C. 40 years
D. 50 years