Quantitative Aptitude - Arithmetic Ability Questions

A rectangle with one side 4 cm is inscribed in a circle of radius 2.5 cm. The area of the rectangle in sq.cm is:

The sum of two digits of a number is 10. If the digits are interchanged, then its value increases by 18. Find the number.

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?

The interest earned on Rs. 3675 at the rate of 4% simple interest per annum for 2 years will be

What least number must be added to 4131, so that the sum is completely divisible by 19?

0.296 + 2.96 + 29.6 + 296 = ?

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

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.