Quantitative Aptitude - Arithmetic Ability Questions

For triangle ABC, find equation of median AD if co-ordinates of A, B and C are (-1,-3), (5,-4) and (3,2) respectively?

If Sec θ = 13/12, then Cot θ = ?

If (1 - sinA)/(1 + sinA) = x, then x is

Weight of A and B are in the ratio 11 : 8. A’s weight increases by 40% and the total weight of A and B increases by 30%. What is the percentage increase in the B’s weight?

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

If cot ­-4π/3 = x, then the value of x is

If  x = 2+3,then what is the value of 2x + 12x ?

Working together P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?