Quantitative Aptitude - Arithmetic Ability Questions

What is the value of [2 cot × (p – A)/2]/[1 + tan2× (2p – A)/2]?

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

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

If 5x/2 - [7(6x - 3/2)]/4 = 5/8, then what is the value of x?

An angle is greater than its complementary angle by 30°. Find the measure of the angle?

If (x - 13)2 + (y - 4)2 = 0, then the value of y + xy - x ?

A sump is filled by three tankers with uniform flow. The first two tankers operating simultaneously fill the sump in the same time during which the sump is filled by the third tanker alone. The second tanker fills the sump 5 hours faster than the first tanker and 4 hours slower than the third tanker. The time required by the first tanker is:

In a class of 39 students there are 36 girls. The average weight of these girls is 38 Kg and average weight of the full class is 40 kgs. What is the average weight of the boys of the class?