Quantitative Aptitude - Arithmetic Ability Questions

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

If 4r = h + r2+h2 then r: h = ? (r not equal to 0)

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

Two circles are having radii 9 cm and 12 cm. The distance between their centres is 15 cm. What is the length (in cm) of their common chord?

If Cot θ = 21/20, then what is the value of Cosec θ?

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 12% per annum is Rs 900. What is the value of given sum (in Rs)?

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

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