Ques:- A four digit number is divisible by 7 becomes divisible by 3, when 10 is added to it. The largest such number is
A. 9947
B. 9987
C. 9989
D. 9996
Ques:- Find out the wrong number in a given series.
644, 328, 164, 84, 44, 24, 14
644, 328, 164, 84, 44, 24, 14
A. 44
B. 84
C. 164
D. 328
Ques:- A train 280 m long is moving at 60 km/hr. Time taken by the train to cross a tunnel 220 m long is
A. 15 sec
B. 20 sec
C. 25 sec
D. 30 sec