A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?Math A. 3.6 km/hr. B. 7.2 km/hr. C. 8.4 km/hr. D. 10 km/hr. See Solution :
Average age of A and B is 30 years, that of B and C is 32 years and the average ago of C and A is 34 years. the age of C is:
In mathematics, a solution to an equation that emerges from the process of solving the problem but is not a valid solution to the problem is called solution:
Father is aged three times more than his son Ali’s. After 8 years, he would be two and a half times of Ali’s age. After further 8 years, how many times would he be of Ali’s age?
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56 Find their present ages in years.
