Quantitative Aptitude - Arithmetic Ability Questions

A person borrows some money for 8 years at a rate of simple interest. If the ratio of principal and total interest is 5 : 8, then what is the rate ( inpercentage) of interest?

Triangle DEF is right angled at E. If cot D = 5/12, then what is the value of sin F?

When a number is increased by 26, it becomes 113% of itself. What is the number?

A defective piece of article which costs Rs. 1200 is being sold at a loss of 15%. If the price is further reduced by 5%, find the S.P?

What is the value of 2 - 2z + z22 + 2z - z2, when z+2z = 2 ?

If a + b = 10 and ab = 24, then the value of a3 + b3 is

For triangle ABC, what would be the equation of median AD if co-ordinates of A, B and C are (-5,4), (-4,0) and (-2,2) respectively?

26% of a number is 65. What is the number?