P, Q and R can do a piece of work in 60 days, 100 days and 80 days respectively. They together work to finish the work and receive INR 2256. Then P will get

Two varieties of sugar are mixed together in a certain ratio. The cost of the mixture per Kg is INR 0.50 less than that of the superior and INR 0.75 more than the inferior variety. The ratio in which the superior and infereior varieties of sugar have been mixed is:

By selling a coat for INR 630, a shopkeeper gains 5%. Find the cost price of the coat

A person covers a certain distance in 6 hours, if travels at 40 km/ hour. If he has to cover the same distance in 4 hours, then his speed must be:

The average of three numbers of which greatest is 16 is 12. If the smallest is half of the greatest, the remaining number is :

A contractor has the target of completing a work in 40 days. He employed 20 persons who completed (1/4) of the work in 10 days and left. The number of persons he has to employ to finish the remaining part as per target is: