Ques:- The largest natural number which exactly divides the product of any four consecutive natural numbers is
A. 6
B. 12
C. 24
D. 120
Ques:- Find out the wrong number in the series:
789, 645, 545, 481, 440, 429, 425
789, 645, 545, 481, 440, 429, 425
A. 429
B. 440
C. 481
D. 645
Ques:- If a 200 m long train crosses a platform of the same length as that of the train in 20 seconds, then the speed of the train is
A. 50 km/hr
B. 60 km/hr
C. 70 km/hr
D. 72 km/hr