Quantitative Aptitude - Arithmetic Ability Questions

Three years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

Determine the value of 'x' when 3x3 = 27

What is the value of (1/√3 + sin45 ) ?

If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

Find the odd word/letters/number pair from the given alternatives.

Select the odd number from the given alternatives.

Hiten marks his pen at Rs 9800 and after allowing discount of 20%, he still earns 12% profit. What is the cost price (in Rs) of the pen?