1.

A man covers a certain distance at a speed of 8 km/h and returns to the starting point at a speed of 6 km/h. What is his average speed?

A. 14/7किमी0/घंटा
B. 28/7किमी0/घंटा
C. 48/7किमी0/घंटा
D. 12/7किमी0/घंटा
Answer» D. 12/7किमी0/घंटा


Discussion

No Comment Found