Ques:- A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
A. 2.4 mph
B. 4 mph
C. 4.8 mph
D. 5 mph
E. None of above
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