How many people play either Basketball or Badminton?

A can do a piece of work in 4 hours; B and C can do it in 3 hours; A and C can do it in 2 hours. How long will B along take to do it?

A sum borrowed under compound interest doubles itself in 10 years. When will it become fourfold of itself at the same rate of interest?

Two numbers are respectively 30% and 40% less than a third number. What percent is the first number of the second?

If A : B: C= 2 : 3 : 4, then $$ {A\over B}:{B\over C}:{C\over A}$$ is equal to 

If x:y=3:2 then the ratio $$ {2\ x^{2}+3\ y^{2}}:{3\ x^{2}}-{2\ {y^{2}}}$$ is equal to

Select the term that will come next in the following series.

5, 9, ?, 29, 45

Pinki is Akshay's brother. Sonia is Saksham's sister. Akshay is Sonia's son. How is Pinki related to Sonia?