List of top General Questions on Quantitative Aptitude

A shopkeeper allows a discount of 10% on the marked price and still gains 20%; if the marked price is ₹800, what is the cost price?
The ratio of the ages of A and B is 4:5, and the sum of their ages is 36 years; what will be the ratio of their ages after 4 years?
A train 150 metres long passes a pole in 15 seconds; what is the speed of the train in km/hr?
If the price of sugar increases by 25%, by what percentage must a household reduce consumption to keep the expenditure the same?