Quantitative Aptitude - Arithmetic Ability Questions

A can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?

A sum of money becomes 77/50 of itself in 18/5 years when invested at simple interest. What is the rate (in percentage) of interest per annum?

Which of the following is a reductible fraction?

Anuj runs 1 2/3 laps of 7 laps race, find the remaining laps to be run.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Rearrange the jumbled up letters in their natural sequence and find the odd one out.

The average age of 40 students of a class is 16 years. If the average age of 24 students is 15.5 years and that of the 15 students is 16 2⁄3 years, then the age of 40th student is

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be: