Quantitative Aptitude - Arithmetic Ability Questions

A and B can complete a task in 1.5 days. However, A had to leave a few days before the task wascompleted and hence it took 2 days in all to complete the task. If A alone could complete the work in2.625 days, how many days before the work getting over did A leave?

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

The present ages of Kavitha, Rajitha and Haritha are in the ratio of 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).

In a school , 391 boys and 323 girls have been divided into the largest possible equal classes , so that each class of boys numbers the same as each class of girls . What is the number of classes ?

9997 x 10003 = ?

Find k, if the line 2x- ­3y = 11 is perpendicular to the line 3x + ky = -­4?

If 3x= 4y= 12, then z is equal to

If the radius of a circle is increased by 15% its area increases by _____.