Quantitative Aptitude - Arithmetic Ability Questions

Parimal has done 1/4th of a job in 10 days, Salim completes the rest of the job in 20 days. In how many days can they together do the job?

If 10 people can do a job in 20 days,then 20 people with twice the efficiency can do the same job in

A wholesaler sells a watch to a retailer at a profit of 33% and the retailer sells it to a customer at a loss of 20%. If the customer pays Rs 2,181.2, what had it cost the wholesaler?

A shopkeeper cheats to the extent of 11% while buying and selling fruits, by using tampered weights. His total gain in percentage is

Find the curved surface area (in cm²) of a hemisphere of diameter 28 cm

At 20% discount the selling price of an article is Rs 2400, what is the selling price (in Rs) if the discount is 32.5%?

The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?