In a city, 25% of the persons earned more than Rs 45000 whereas 75% earned more than 18000. Calculate range.

Why do slim persons feel more cold in winter than those who are obese?

From a group of 5 boys and 3 girls, three persons are chosen at random. Find the probability that there are more girls than boys

A dividend of 9% was declared on a share of FV Rs 100 at a certain price. If the rate of return is 7.5% calculate MV of the share. How many shares would a person get on investing Rs 8400 ?