Ques:- My watch gains 5 minutes, in every hour. How many degrees the second hand moves in every minute?
A. 375°
B. 380°
C. 385°
D. 390°
Ques:- Find out the wrong number in the series:
6, 12, 48, 100, 384, 768, 3072
6, 12, 48, 100, 384, 768, 3072
A. 48
B. 100
C. 384
D. 768
Ques:- There is a leak in the bottom of a cistern. When the cisternis thoroughly repaired, it would be filled in 3 ? hours. It now takes half an hour longer. If the cistern is full, howlong will the leak take to empty the cistern?
A. 24 hours
B. 28 hours
C. 21 hours
D. 27 hours
E. None of these