Quantitative Aptitude - Arithmetic Ability Questions

If a + b = 1, then a4 + b4 - a3 - b3 - 2a2b2 + ab is equal to

If cosθ = x2-y2x2+y2, then the value of cotθ is

In the following question, select the odd word from the given alternatives.

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

If 9/4th of 7/2 of a number is 126, then 7/2th of that number is _____.

In a one day match of 50 overs in an innings the Team A had a run rate of 6.1 runs per over. Team B is playing and 10 overs are left and the required run rate to tie the match is 6.5 per over. What is Team B's score now?

The difference between the largest and the smallest angles of a triangle whose angles are in the ratio of 5:3:10 is

A and B can complete a task in 20 days, B and C can complete it in 30 days while C and A can do the same task together in 24 days. How many days will each of and C take to complete the task individually?