Quantitative Aptitude - Arithmetic Ability Questions

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

Solve the following: (−18)[36÷7−(−2)]÷{}(−4)19−(−3)×(−5)={}?

If x1/4 + x-1/4 = 2, then what is the value of x81 + (1/x81)?

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

θ is a positive acute angle and sinθ ­ cosθ = 0, then the value of secθ + cosecθ is

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

A rectangular swimming pool of length 30 m and breadth 15 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 2 m at the other. How much water is needed to completely fill this pool?

In what ratio does the point T (3,0) divide the segment joining the points S (4,­2) and U (1,4)?