A number is first decreased by 10% and then increased by 10%. The number so obtained is 50 less than the original number…

In an examination a candidate must secure 40% marks to pass. A candidate, who gets 220 marks, fails by 20 marks. Find th…

An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petro…

The weight of an empty bucket is 25% of the weight of the bucket when filled with some liquid. Some of the liquid has be…

The population of a village is 25000. One-fifth are females and the rest are males, 5% of males and 40% of females are u…

Find the value : <br> 3.2% of 500 × 2.4% of ? = 288

The square of a positive number is 2000% greater than the number itself, then the square of that number is :

Present population of a village is 67600, It has been increasing annually at the rate of 4%. What was the population of …