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 H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M.?
A. 24
B. 48
C. 56
D. 60