Quantitative Aptitude - Arithmetic Ability Questions

3 years ago, the ratio of Maya's and Shikha's age was 5:9respectively. After 5 years, this ratio would become 3:5. Find present age of Maya?

If the volumes of two right circular cones are in the ratio 1:4 and their diameters of bases in the ratio 4:5, then their heights will be in the ratio:

The total surface area of a hemisphere is 462 sq.cm. Find its diameter (in cm).

Ms. Alina borrowed Rs.650 at 6% per annum simple interest. What amount will she pay to clear her debt after 4 years?

In a class of 39 students there are 36 girls. The average weight of these girls is 38 Kg and average weight of the full class is 40 kgs. What is the average weight of the boys of the class?

A number was divided in the ratio 3:2. When 8 was was added to each of the numbers the ratio changed to 7:5. The greater of the two numbers was

In the following question, select the odd letter/letters from the given alternatives.

A well of diameter 3 m and depth 14 m is dug. The earth, taken out of it, has been evenly spread all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of embankment?