A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of ? 40, then how many metres of cloth costing ? 32 per metre he should purchase
1. Two students appeared for an examination. One of them secured 20 marks more than the other and his marks were 55% of the sum of their marks. The marks obtained by them are
4. Two numbers are 35% and 50% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?
7. Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are