Quantitative Aptitude - Arithmetic Ability Questions

If xy = 48 and x2 + y2 = 100, then (x + y) is

Tapas, Avi and Rishi shared a cake. Tapa had 1/2 of it, Rishi had 1/3 of it, and Avi had the rest. What was Avi's share of the cake?

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

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?

The cross section of a canal is in the shape of an isosceles trapezium which is 4 m wide at the bottom and 5 m wide at the top. If the depth of the canal is 2 m and it is 120 m long, what is the maximum capacity of this canal?

The marked price of a chair is 40% more than its cost price. If the chair is sold for Rs 520 after a discount of Rs 40, then what will be the profit percentage?

A can paint a house in 45 days and B can do it in 15 days. Along with C, they did the job in 5 days only. Then, C alone can do the job in how many days?

If m+n=1, then the value of m3+n3+3mnis equal to