Quantitative Aptitude - Arithmetic Ability Questions

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?

What is the value of Cot 45° - (1/√3)Cosec 60°?

What is the value of equation a3+b3+c3-3abc if a2+b2+c2=ab+bc+ca+4 and a+b+c = 4.

Find the odd word/number/letters from the given alternatives

Select the odd number from the given alternatives.

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

A, B and C can finish a job working alone in 72, 24 and 36 days respectively. In how many days they can finish the job if they worked together?

A number exceeds its 1/6 by 30. What is the number?