Quantitative Aptitude - Arithmetic Ability Questions

A and B together can complete a task in 12 days. However, if A works alone, completes half the job and leaves and then B works alone and competes the rest of the work, it takes 25 days in all to complete the work. If B is more efficient than A, how many days would it have taken B to do the work by herself?

The marked price of a chair is Rs 550 and a discount of 20% is given on it. What is the selling price (in Rs)?

A store sells a watch for a profit of 25% of the cost. Then the percentage of profit against selling price is

If the ratio of the cost price and the selling price of an article be 4:5, then the percentage of profit is:

Price of 1 kg of sugar is increased by 30% and the increase is of Rs 48. What is the new price (in Rs) of the sugar per kg?

A tyre is sold at three successive discounts of 20%,30%, and 20%. What is the net discount (in percentage)

The area of the largest sphere ( in cm2) that can be drawn inside a square of side 18 cm is

A man travels 404 kilometres in partly by rail and steamer. He spends 10 hours more time on steamer. If the speed of the steamer is 30 km/hr and the velocity of rail is 50 km/hr, how much distance does he cover by steamer?