A, B and C working individually can complete a task in 30 days, 15 days and 10 days respectively. If A starts workign alone and B and C hepls A on every 2 nd and 3 rd day respectively , how long will it task to be completed?

Jamil can run 1 km in 4 minute. Heas a car that has a top speed of 75 km/hour . Jamil's speed id what percenta...

A certain amount of money earning simple interest becomes 7/5th of the initial amount in 4 years . What is the...

For which value of P will the square root of

A better scored 87 runs in her 17 th innings , which increased her carrer average by 3 rund. What is the avera...

A boat has a crack in its bull which is leaking water into the boat and could pump which can pump the water ou...

In a class, if 4 students sit on each bench there are 3 empty benches, but 6 students have to stand if 3 stude...