It was compulsory to get 36% marks in a paper to Rakesh to pass it. He got only 24 % marks and failed by 9 marks. Total marks of paper was-

The number, whose square is equal to the difference between the squares of 975 and 585, is: 

In the given figure, AB‖DC,  ∠BAD=90°,   ∠CBD=28° and ∠BCE=65°, Then ∠ABD=?

Tarun and Uday together can complete a piece of work in 16 days; Uday and Vivek together can complete the work in 28 4/5 days; while Tarun and Vivek together can complete the work in 18 days. In how many days can Tarun alone complete the work?

The difference between the sum of four consecutive odd numbers and three consecutives even numbers together is 20. Also, the largest even number is 5 more than the largest odd number. What is the sum of the smallest odd number and the smallest even number?

A businessman sells a commodity at 10 % profit. If he had bought it at 10 % less and sold it for Rs. 2 less, then he would have gained $$16{2\over3}\%$$. The cost price of the commodity is 

The ratio of marks obtained by Rajesh, Rakesh and Ramesh in an exam is 2 : 4 : 9. What are the marks obtained by Rakesh and Ramesh, if Rajesh scored 30 marks in the exam?