Quantitative Aptitude - Arithmetic Ability Questions

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

Coefficient of x2 in (x + 7)(5 - 3x)(3x - 6) is

If 3x + 4(1-x) > 5x -2 > 3x - 4; then the value of x is

If a3+1a3 = 2, then the value of a2+1a?

The bus fare between two cities is increased in the ratio 11:18. What would be the increase in the fare, if the original fare is Rs 550?

A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job?

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

4*(-­0.1(5.5 + 8.5)) of 0.5 = ?