Quantitative Aptitude - Arithmetic Ability Questions

Simple interest on a sum of Rs 50200 for 3 months is Rs 1380.5. What is the rate (in percentage) of interest per annum?

The average age of 36 students in a group is 14 years. When the teacher's age is included in it, the average increases by one. The teacher's age in years is

(−12)[11+7×(−3)]÷{}[413−(−3)×(−6)]=

In a number system, on dividing 11509 by a certain number, Mukesh gets 71 as quotient and 7 as remainder. What is the divisor?

Sahil sold an item for Rs. 280 at a loss of 20%. The cost price of the item was

The age of A is three times the age of B. What is the ratio of the age of B to the age of A?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

Select the odd word/letters/number/number pair from the given alternatives.