If x=1-q and y=2q+1, then for what value of q,x is equal to y ?

3 years ago, the average age of a family of 5 members was 17 years. A baby having been born the average age of...

There are two numbers such that the sum of twice the first and thrice the second is 39. While the sum of thric...

A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3...

In an election, 30% of the voters voted for candidate A whereas 60% of the remaining voted for candidate B. Th...

A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Tk. 392, what was his pr...

The least whole number which when subtracted from both the terms of the ratio 6 : 7 gives a ratio less than 16...