A man can swim in still water at a rate of 4km/hr. The width of the river is 1km.How long will he take to cross the river straight, if the speed of the current is 3km/hr

An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 5/3 hours, it must travel at a speed of

A does half as much work as B in one-sixth of time. If together they take 10 days to complete a work, how much time shall B alone take to do it

Two pipes A and B can fill the Tank in 24 hours and 30 hours. If both the pipes are opened simultaneously in the empty tank, how much time will be taken by them to fill it

A sum of money at simple interest doubles in 7 years. It will becomes four times in

If the difference between compound interest and simple interest on a certain sum of money for 3 years at 5% per annum is Rs 15.25, find the sum

What was the day of the week on 4^th June, 2002

In how many ways can the letters of the word MACHINE be arranged so that the vowels may occupy the odd Positions

Two cards drawn from pack of 52 cards. What is the Probability that both are red or both Kings

The ratio of Milk and Water in 64 Litres of mixture is 5:3.What amount of water is added to make the ratio 3:5

Statements: All buildings are chalks. No chalk is toffee.

Conclusions: No building is toffee. All chalks are buildings.

If A + B means B is the brother of A; A x B means B is the husband of A; A - B means A is the mother of B and A % B means A is the father of B, which of the following relations shows that Q is the grandmother of T?

2, 7, 27, 107, 427,

Pointing to a girl in the photograph, Ajay said, "Her mother's brother is the only son of my mother's father." How is the girl's mother related to Ajay