Quantitative Aptitude - Arithmetic Ability Questions

A solid cube is cut into 27 identical cubes. What is the percentage increase in the total surface area?

Two numbers are 35% and 40% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

A person goes from point N to P and comes back. His average speed for the whole journey is 60 km/hr. If his speed while going from N to P is 40 km/hr, then what will be the speed of the person (in km/hr) while coming back from P to N?

What is the distance between the points (11,-5) and (-1,0)?

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

When a number is divided by 63 the remainder is obtained as 26. What will be the remainder when the number is divided by 3?

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

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