Quantitative Aptitude - Arithmetic Ability Questions

A sum of Rs 2000 becomes Rs 3645 in 2 years at a certain rate of compound interest. What will be the sum (in Rs) after 4 years?

If a - b = -1 and ab = 6, then what is the value of a3- b3?

Area of 4 walls of a cuboid is 448 sq cm, its length is 18 cm and height is 8 cm. What is its breadth (in cm)?

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

P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

A solid cone of height 24 cm and radius of its base 8 cm is melted to form a solid cylinder of radius 6 cm and height 6 cm. In the whole process what
percent of material is wasted?

A fraction is greater than its reciprocal by 9/20. What is the fraction?

If two flood gates A and B function simultaneously, the reservoir will be filled iu 6 hours. Gate A fills the reservoir 5 hours faster than gate B. How many hours does the faster flood gate take to fill the reservoir?