Quantitative Aptitude - Arithmetic Ability Questions

If sinθ+cosθsinθ-cosθ=3,then the value of sin4θ-cos4θ is

Bipul is 16 years younger than Saibal. 12 years hence, Saibal's age will be 1.5 times that of Bipul. Saibal is now ___ years old.

Simple interest on a sum for 5 years is equal to 20% of the principal. In how many years interest will be equal to the principal?

In a triangle PQR, the side QR is extended to S. ∠QPR = 72° and ∠PRS = 110°, then the value of ∠PQR is

If a+1a2=3,then the value of a2+1a2 will be

An amount fetched a total simple interest of Rs. 3200 at the rate of 6.25 %/yr in 4 years. What is the amount (in Rs)?

After allowing a discount of 20% on Marked price Kishore makes a profit of 12%. What percentage is the Marked price above the Cost price?

Two whole numbers are such that the cube of first number exceeds the cube of second by 61 and the ratio of the numbers is 5:4. What is the value of larger number?