Quantitative Aptitude - Arithmetic Ability Questions

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

25% discount is offered on an item. By applying a promo code the customer wins 22% cash back. What is the effective discount?

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2)/(3q2 + 4s2 + 5u2)]?

If 1 + secA = x, then the value of x is

If tan(A/2) = x, then the value of x is

What is the value of tan 7π/6?

In a trapezium, one diagonal divides the other in the ratio 2 : 9. If the length of the larger of the two parallel sides is 45 cm, then what is the length (in cm) of the other parallel side?

A square ground is to be covered by planting 100 saplings on each side. How many saplings are needed in all?