Quantitative Aptitude - Arithmetic Ability Questions

Krish is 5 years younger than Parthiv. Eight years ago three times the age of Krish was 10 more than twice the age of Parthiv. Find Krish's present age?

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

Ram and Rahim standing at a distance of 680m run towards each other at a speed of 8 m/sec and 9 m/sec respectively. After how long will they meet?

Find the value of x if 1-x24 = 1318

What is the equation of a line of slope 1/3 and y-intercept 5?

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450√3 metres from point P observes that angle of elevation of the balloon is 60 deg. Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

A's salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose?