A person spends 40% of his monthly income. The monthly income of the person is increased by 15% and his expenditure is decreased by 22%. What is the approximate percentage increase in his savings?

Find the greatest perfect square number of 5 digits.

In a moter of 120 machine parts, 5 % parts were defective, in another motor of 80 machine parts, 10 % parts were defective. For the two motors considered together, the percentage of defective machine parts were 

Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?

Price of sugar rises by 20%. By how much percent should the consumption of sugar be reduced so that the expenditure does not change?

0.08% of 120% of 40,000 is equal to___.

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.