Quantitative Aptitude - Arithmetic Ability Questions

An angle is greater than its complementary angle by 40°. Find the measure of the angle?

What is the difference (in Rs) between compound interest (compounded annually) and simple interest for 3 years on a principal of Rs 4000 at the rate of 30% per annum?

What is the sum of all prime numbers between 60 and 80?

Find the odd pair out.

Find the greatest number which on dividing 391 and 318 leaves remainders 7 and 6 respectively.

The expenses of a person increase by Rs. 50000 for every month in February and March. If his expenses in January was Rs. 50000, calculate his average expenditure (in Rs.) from January to March.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The sum of two fractions is 3/4. One of them is 2/3. What is the other fraction?