
Ques:- A number is divisible by 11 if the difference between the sum of the digits in odd and even places respectively is
A. a multiple of 3
B. a multiple of 5
C. zero or a multiple of 7
D. zero or a multiple of 11
Ques:- A train 300 m long crossed a platform 900 m long in 1 minutes 12 seconds. The speed of the train (in km/hr) is
A. 40
B. 50
C. 60
D. 70