Quantitative Aptitude - Arithmetic Ability Questions

Rs. x invested at 9% simple interest per annum for 5 years yields the same interest as that on Rs. y invested at 6.25% simple interest per annum for 8 years. Find x:y.

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?

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

Sum of a fraction and thrice of its reciprocal is 73/20. What is the fraction?

On dividing 221a2b2 by 13b2, we get _____.

If x + 3 ≤ 4x + 4 and 5(4 -­ x) ­- 4 ≥ 5x - ­2; then

Select the odd word from the given alternatives.

If the angles of a triangle are in the ratio of 1 : 4 : 7, then find the ratio of the greatest angle to the smallest angle.