A report consists of 20 sheets each of 55 lines and each such line consist of 65 characters. This report is reduced onto…

If x% of y is the same as $$\frac{4}{5}$$ of 80, then the value of xy is :

In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as get a mixture of 4…

By how much percent must a motorist increase his speed in order of reduce by 20%, the time taken to cover a certain dist…

After three successive equal percentage rise in the salary the sum of 100 rupees turned into 140 rupees and 49 paise. Fi…

The price of sugar per kg increased from Rs. 16 to Rs. 20. The percentage reduction in the use of sugar so that the expe…

An interval of 3 hours 40 minutes is wrongly estimated as 3 hours 45.5 minutes. The error percentage is :

A number if reduced by 25% becomes 225. By what percent should it be increased so that it becomes 375 ?