At some rate of simple interest, A lent ₹6000 to B for 2 years and ₹1500 to C for 4 years and received ₹900 as interest from both of them together. The rate of interest per annum was

In an election there were only two candidates. One of the candidates secured 40% of votes and is defeated by the other candidate by 298 votes. Then the total number of votes polled is

If the annual incomes of A, B and C are in the ratio 1 : 3 : 7 and the total annual income of A and C is ₹800000, then the monthly salary of B (in ₹) is

When n is divided by 5 the remainder is 2. What is the remainder when n² is divided by 5?

The ratio between the monthly incomes of A and B is 9 : 8 and the ratio between their expenditures is 8 : 7. If they save ₹500 each, find A's monthly income.

Ramesh bought 10 cycles for ₹500 each. He spent ₹2000 on the repair of all cycles. He sold five of them for ₹750 each and the remaining for ₹550 each. Then, the total gain or loss % is

A moving train passes a 50 m long platform in 14 sec and a lamp-post in 10 sec. The speed of the train is

A shopkeeper sells an article at a loss of 12 1/2 %. Had he sold the article for ₹51.80 more, he would have earned a profit of 6%. The cost price of the article is

A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is