Quantitative Aptitude - Arithmetic Ability Questions

A box of 20 items was bought for Rs. 6,400 after a discount of 20%. Find the cost of each item.

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

What is the difference of the factors of the expression x2 + (1/x2) – 6?

If y=2secθ and x=3tanθ then x29-y24 is

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

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs 25000 after 2 years at the same rate?

R borrowed Rs. 1,200 at 13% per annum simple interest. What amount will R pay to clear the debt after 5 years?

Akash's monthly income is Rs. 9600. His monthly expenditure is 60% of his income. What is his saving per month?