Quantitative Aptitude - Arithmetic Ability Questions

If a+b=3 then the value of a3+b3+9ab-­27 is

If xy = 22 and x2+ y2= 100, then what will be the value of (x + y)?

The ratio of ages of father and son is 7:2. Five years ago the product of their ages was 150. What is the age of the father?

A sum of Rs 15525 is divided among Sunil, Anil and Jamil such that if Rs 22, Rs 35 and Rs 48 be diminished from their shares respectively, their remaining sums shall be in the ratio 7:10:13. What would have been the ratio of their sums if Rs 16, Rs 77 and Rs 37 respectively were added to their original shares?

A and B started a partnership business investing some amount in the ratio of 5 : 6. C joined then after 6 months with an amount equal to 2/3rd of B. What was their profit (in Rs) at the end of the year if C got Rs 21,600 as his share?

A trader had 9 quintals of wheat. He sold a part of it at 10% profit and the rest at 20% profit, so that he made a total profit of 14 %. How much wheat did he sell at 20% profit?

Rajesh sells a machine for Rs 57 lakhs at a loss. Had he sold it for Rs 67 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

The selling price of 6 bananas is equal to the cost price of 8 bananas. Then the percentage of profit is