Quantitative Aptitude - Arithmetic Ability Questions

A sum fetched a total simple interest of Rs. 7728 at the rate of 7% per year in 8 years. What is the sum?

Find the simple interest on Rs. 50 for 6 months at the rate of 10 paise per rupee per month.

What is the sum of all natural numbers between 100 and 400 which are divisible by 13?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 24200, and Rs 26620 respectively, what is the rate of interest?

Point Q(-2,b) is the midpoint of segment EF. Co-ordinates of E are (-7,-6) and F are (a,0). What is the value of a and b?

In the following question, select the odd letters from the given alternatives.

Which of the fractions given below is not equal to 4/11 ?

If cos 21° = x/y, then cosec 21° -­ cos 69° is equal to