Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

If 9x+2 = 240 + 9x, the value of (8x)x is

If θ is positive acute angle and 7cos2Ɵ + 3sin2Ɵ = 4, then the value of θ is

In the following question, select the odd letter/letters 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?

If x = √2+1, then the value of x4-1/x4

In ΔDEF, G and H are points on side DE and DF respectively. GH is parallel to EF. If G divides DE in the ratio 1:3 and HF is 7.2 cm, find length of DF?

What should be the missing digit so that the number 347_547 becomes exactly divisible by 11?