self Maths Puzzle

A car covers 15 km in 12 minutes. If we decrease the speed by 5 km/hr,
then in how much time will the same car cover the same distance?

Read Solution (Total 3)

self Other Question

Choose the correct alternative..
FIND the value of [(4/7)^3-(3/7)^3]/[(4/7)^2-(3/7)^2]
Arjun can complete 1/4th of a work in 10 days. Then Raj joins him and both of them complete the work together in 8 days. In how many days Raj alone finishes the work?