Quantitative Aptitude - Arithmetic Ability Questions

If in 2 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs 7000 in 3 years at the same rate?

The sum of squares of three positive integers is 323. If the sum of squares of two numbers is twice the third, their product is

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?

The upper part of a tree broken over by the wind make an angle of 60 deg with the ground. The distance between the root and the point where top of the tree touches the ground is 25 metres. What was the height (in metres) of the tree?

If a + b = 10 and ab = 24, then the value of a3 + b3 is

Simplify 576b3x2a4z3/36a3b2z

Out of two numbers, 30% of the smaller number is equal to 18% of the larger number. If the sum of the two numbers is 840, then what is the value of the larger number?

What is the third proportional to 10 and 25?