Chose the pair of numbers which comes next: 75,65,85,55,45,85,35.........

If the sides of a square increase by 10%,how much will the area be increased in percentage ?

If the average of 5 consecutive number is 12, what is the sum of the least and the grater of the integer?

At a party,everyone shake hands with everybody else. If there were 66 handshakes, how many people were at the...

Three pipes P, Q and R can fill a tank in 6 hours. After running all three together for 2 hours, R is closed a...

Present ages of Samad and Akmal are in the ratio of 5:4 respectively. three years later, the ratio of their ag...

In a two-digit number, if it is known that its unit's digit exceeds its tens digit by 2 and that the product o...