Quantitative Aptitude - Arithmetic Ability Questions

The interest on Rs. 1250 for 6 years at the rate of 4% simple interest per annum will be

The diagonals are not perpendicular in a _____.

Find the curved surface area (in cm2) of a hemisphere of diameter 7 cm.

The average age of 27 students of a class is 22. If the age of the teacher is also added to their ages, then the average increases by one. Find the age of the teacher.

The median of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is

The length and breadth of a rectangular piece of a land are in a ratio 5:3. The owner spent Rs. 6000 for surrounding it from all sides at Rs.7.50 per metre. The difference between its length and breadth is

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

The variance of a set of data is 121. Then the standard deviation of the data is