Quantitative Aptitude - Arithmetic Ability Questions

In an alloy, aluminium and tin are in the ratio of 4 : 5. In the second alloy, the ratio of same elements is 4 : 7. If equal quantities of these two alloys be mixed to form a new alloy, then what will be the ratio of both of these elements in the new alloy?

If Sinθ = √3/2 and 0°<θ<90°, then the value of tan(θ-15°) is

How much does one need to add to 2/3 to obtain 3/2?

A tap can fill a tank in 50 minutes. If the tank has a leakage which alone is capable of emptying the tank in 2.5 hours, the tank will now be filled in

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

Rearrange the jumbled up letters to form a meaningful word and find the odd one out.

Rearrange the jumbled up letters in their natural sequence ad find the odd one out.

If 14.35 - (1.956 - x ) - 83.92 = 3.858 then what is the value of x?