Quantitative Aptitude - Arithmetic Ability Questions

What is the value of (cosecA - cotA) / (secA + tanA)?

Find the Greatest Common Factor of 280 and 144.

The ratio of salary of X, Y and Z is 15 : 3 : 8. If Z gets Rs. 3960 more than Y, then what is the salary (in Rs.) of X?

Find out the odd word/letters/number/number pair from the given alternatives.

Four pairs of words are given. Find the odd one out.

In a mixture of 45 litres, the ratio of liquid A and liquid B is 7 : 2. If 11 litres of liquid B is added to the mixture, then what will be the ratio of liquid A and liquid B in the new mixture?

Munni can bake 70 cakes in 7 hours, Munni and Guddi together can bake 90 cakes in 6 hours. How many cakes Guddi can bake in 10 hours?

The mean of the 5 smallest numbers from a group is 15 while the mean of all the 13 members of the group taken together is 17. What is the mean of the 8 largest numbers?