Quantitative Aptitude - Arithmetic Ability Questions

When a discount of 25% is given on a box of popcorn, the profit is 25%. If the discount is 10%, then the profit is

wooden bowl is in shape of a hollow hemisphere of internal radius 9 cm and thickness 1 cm. Find the total surface area of the bowl?

The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) of coach?

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

A map is drawn at a scale of 2 mm for 500 kms. Two places are marked at the distance of 3.6 mm; calculate the distance (in kms) between these two places?

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs. 30000 after 3 years at the same rate?

If 5% of (P + Q) = 20% of (P – Q), then P is what percentage of Q?

If(x + y)2 = xy + 1 and x3 – y3 = 1, then what is the value of x – y?