Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
Ques:- A train of length 150 m takes 40.5 seconds to cross a tunnel of length of 300 m. The speed of the train (in km/hr) is
A. 13.33
B. 26.67
C. 38.32
D. 40
Ques:- A prime number N, in the range 10 to 50 remains unchanged when its digits are reversed. The square of such a number is
A. 1936
B. 1089
C. 484
D. 121