The difference between a fraction and its reciprocal is 9/11. If the cubes of both the fraction and its reciprocal are considered, what will be the difference between them?

A number x when divided by 289 leaves 18 as the remainder. The same number when divided by 17 leaves y as a remainder. The value of y is 

A basket consists of five blue balls, four green balls, two red balls and three yellow balls. Three balls are drawn at random. What is the probability that at least one blue ball is drawn?

Find the least number exactly divisible by 12,15,20,27 ?

When the average age of husband, wife and their son was 42 years, the son got married and a child was born just one year after marriage. When the child turned to be 5 years, the average age of the family becomes 36 years. What was the age of daughter-in-law at the time of marriage?

A pipe of diameter d can drain a certain water tank in 40 minutes. The time taken by a pipe of diameter 2d for doing the same job in: 

If a=34, b=c=33, then the value of a3+b3+c3-3abc is 

In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was: