The population of a city is decreased by 20% in the first year and then increased by 30% in the second year. Find the population of the city at the end...
In a company, 70% of the employees are in the engineering department, and the rest are in the marketing department. 50% of the engineering employees and...
Ajay secured 30% in an exam but fell short of the passing mark by 60 marks, whereas Bijay scored 55% and exceeded the passing mark by 90 marks. Determin...
A man invested all his current month income in starting of a new business in which he spends 25% in advertisement 20% of remaining in furniture 10% of r...
Out of his total income, Sanjay spent 50% on rent, 20% of the remaining income on groceries, and saved 30% of the income left after his expenses. Find t...
The marks scored by a boy in three subjects are in the ratio 2 : 3 : 5. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
If x% of y is 100 and y% of z is 200, then find the relation between x and z.
...What is the percentage change in the result when we add 25 to a certain number x, instead of subtracting 25 from the same number x?
The reduction of 20% in the price of rice enables a person to obtain 50 kg more for Rs.450. Find the original price of rice per kg.
Mr Rajesh buys a toy for Rs 27.50 and sells it for Rs 28.60 Find the gain percentage
