Quantitative Aptitude - Arithmetic Ability Questions

Find the area (in sq.cm) of a semi-circle of radius 7 cm

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)?

In a class of 50 students there are 27 boys. The average weight of these boys is 72 Kg and average weight of the full class is 55.44 kgs. What is the average weight (in kgs) of the girls of the class?

The largest 5 digit number exactly divisible by 84 is:

If 3x -­ 7 = 5x ­- 1, then the numerical value of (x ­- 4)2 is 

Given a -­ b = 2, a3 - b3=26 then (a + b)2 is

What is the value of [(cos 7A + cos 5A)÷(sin 7A – sin 5A)]?

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