If 7x ­- 5y = 13 and 2x -­ y = 5, then (x -­ y) is

A vendor buys some lemons at the rate of 11 for Rs 10 and sells at the rate of 4 for Rs 5. What will be the result?

The costs of daily ticket of local train is Rs 130 and Monthly Pass costs Rs 3091.40. If I buy the Monthly Pass and travel for 29 days in a month than I save (in percentage)?

If secA = x, then the value of x is

If 27% of an electricity bill is deducted, Rs 1825 is still to be paid. How much was the bill?

The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?

In the first 38 overs of a cricket match, the run rate was 4.5 runs/over. Calculate the required run rate in the remaining 12 overs to reach the target of 288 runs?

The effective annual rate of interest corresponding to a nominal rate of 19% per annum payable half­yearly is: