Quantitative Aptitude - Arithmetic Ability Questions

If 9/4th of 7/2 of a number is 126, then 7/2th of that number is _____.

The area of a rhombus is 24 m2 and the length of one of its diagonals is 8 m. The length of each side of the rhombus will be:

What is the reflection of the point (-1 , 5) in the line x = 1?

The sum of three consecutive even numbers is 42. Find the middle number.

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

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?

The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1.5 hours, what is the speed of car B?

The total surface area of a cuboid is 376 sq cm. Find its volume if its length and breadth are 10 cm and 8 cm respectively?