Quantitative Aptitude - Arithmetic Ability Questions

Present age of Vikas and Raman are in the ratio of 6 : 5 respectively. If the present age of Rohan is 98 years and the present age of Vikas is 3/7 of the the present age of Rohan, then after how many years the ages of Vikas and Raman would be in the ratio of 7 : 6?

The square root of 4624 is

Which pair is not similar to the other three?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Solve the following 7 x {4 + (-2) x (-3)} = ?

A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?

If FRIEND is coded as HUMJTK, how can CANDLE be written in that code?

If the measure of the interior angle of a regular polygon is 100 deg greater than the measure of its exterior angle then how many sides does it have?