The amount of work in a leather factory is increased by 50%. By what percent is it necessary to increase the number of w…

A man spends 80% of his income. With increase in the cost of living, his expenditure increases by $$37\frac{1}{2}$$% and…

What percentage of 3.6 kg is 72 gms. ?

A clock is set right at 12 noon on Monday. It losses $$\frac{1}{2}$$ % on the correct time in the first week but gains $…

In an examination 80% candidates passed in English and 85% candidates passed in Mathematics. If 73% candidates passed in…

The population of a variety of tiny bush in an experimental field increased by 10% in the first year, increased by 8% in…

The price of an article was increased by r%. Later the new price was decreased by r%. If the latest price was Rs. 1, the…

The cost of an article was Rs.75. The cost was first increased by 20% and later on it was reduced by 20%. The present co…