The population of a town is 189000. It decreases by 8% in the first year and increases by 5% in the second year. What is…

From the salary of an officer, 10% is deducted as house rent, 20% of the rest, he spends on conveyance, 20% of the rest …

When the price of an article was reduce by 20%, its sale increased by 80%. What was the net effect on the sale ?

If 90% of A = 30% of B and B = 2x% of A, then the value of x is :

76% of the students in a school are boys. If the number of girls is 204, then the total number of students is :

605 sweets are distributed equally among children in such a way that the number of sweets received by each child is 20% …

If 15% of (A + B) = 25% of (A - B), then what percent of B equal to A ?

After three successive equal percentage rise in the salary the sum of 100 rupees turned into 140 rupees and 49 paise. Fi…