Deepak sells all his goods available in his shop at the cost price, but he cheats his customer and gives 20% less goods as he should give. Find his % profit.
The shadow of a tower on ground level is increased by 30 m, when the angle of depression by the sun changes from 60 deg to 30 deg. The height of the tower is
Atul can do a piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?