Quantitative Aptitude - Arithmetic Ability Questions

What is the remainder when 6910 is divided by 81?

What is the HCF (highest common factor) of 57 and 513?

In what ratio sugar at Rs 30/kg should be mixed with sugar at Rs 45/kg so that on selling the mixture at Rs 42/kg there is a profit of 20%?

P and Q are two alloys which are prepared by mixing tin and lead in the ratio of 12 : 5 and 4 : 3 respectively. If equal quantities of alloys are melted to form athird alloy R, then what is the ratio of tin and lead in alloy R?

Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73

A trader had 6 quintals of wheat. He sold a part of it at 7% profit and the rest at 17% profit, so that he made a total profit of 11%. How much wheat did he sell at 17% profit?

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

The average of three consecutive odd numbers is 52 more than 1/3rd of the largest of these numbers. What is the smallest of these numbers?