Quantitative Aptitude - Arithmetic Ability Questions

If [2(4x/5 - 3/4)]/3 - 5/3 = -1/6, then the value of x is?

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

If the value 5 = 2.236,then calculate the value of 405 - 1280-125

If sin ­- 5π/3 = x, then the value of x is

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

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

If 2x- 3(4-2x) < 4x - 5 < 4x + 2x/3, then x can take which of the following values?

Triangle PQR is inscribed in a circle such that P, Q and R lie on the circumference. If PQ is the diameter of the circle and ∠PQR = 40°, then what is the value (in degrees) of ∠QPR?