Quantitative Aptitude - Arithmetic Ability Questions

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

If x2-3x+1=0, then x+1x is (x≠0)

If tanA + tanB = X, then the value of X is

ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?

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

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

Pipes A, B, and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hours, respectively, the third can drain the cistern, when filled, in 6 hours. If all the three pipes are opened simultaneously when the cistern is three-fifth full, how many hours will be needed to fill the cistern?

Which of the following ratios can be the ratio of the sides of a right angled triangle?