Quantitative Aptitude - Arithmetic Ability Questions

If a boat goes upstream at a speed of 24 km/hr and comes back the same distance at 40 km/hr. What is the average speed (in km/hr) for the total journey.

The price of a product after getting 20% discount is Rs 3,024 which includes 5% tax on selling price. What was the marked price (in Rs) of the product?

If pq(p+q) = 1, then the value of 1p3q3-p3-q3 is equal to

The mean height of 25 boys in a class is 150 cm, and the mean height of 35 girls in the same class is 145 cm. The combined mean height of 60 students in the class is ___ (app)

If a merchant offers a discount of 10% on the list price, then she makes a loss of 25%. What % profit or % loss will she make if she sells at a discount of 20% of the list price?

When a discount of 25% is given on a cruise trip, the profit is 41%. If the discount is 26%, then the profit is

M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?

∆XYZ is right angled at Y. If CosecX = 17/15, then what is the value of CotZ?