Quantitative Aptitude - Arithmetic Ability Questions

The length of one side and the diagonal of a rectangle are 20 cm and 29 cm respectively. Find the length of its other side (in cm).

ΔXYZ is right angled at Y. If m∠X = 30 deg, then find the value of (sinZ + √3).

The figure shown below consists of the tangents at the extremeties of any chord. Choose the correct option given below.

What is the slope of the line perpendicular to the line passing through the points (8,­2) and (3,­1)?

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

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?

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.

Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?