Quantitative Aptitude - Arithmetic Ability Questions

A is thrice as productive as C. Together they can complete a job in 22.5 days. If B joins them after they have worked for 15 days then in how many days can they finish the rest of the job if B alone can do the job in 15 days?

Divide 150 into two parts such that the sum of their reciprocals is 3/112. Calculate both the parts.

The difference between 44% of a number and 33% of the same number is 286. What is the 54% of that number?

If the radius of a circle is increased by 17% its area increases by ______.

A can do a work in 8 days, B can do the same work in 10 days and C can do the same work in 12 days. If all three of them do the same work together and they are paid Rs 7400, then what is the share (in Rs) of B?

Expand and simplify (2x + 5)2 *(4x ­- 1) -­ (3x3 - 16x2 + 25x -­ 21)

Average of 11 numbers is 7. If every number is doubled, then what will be the new average of the numbers?

26 is 0.4% of which number?