Two numbers are more than the third number by 20 % and 50 % respectively. Find the first number is what percent of the second number? 

After an increase in tea price by 40% a family reduce its consumption of tea to the extent that there should be an increase on tea expense only by 10%. If the earlier consumption of tea was 28 kg, then what will be their new consumption?

The population of a city in the year 2020 was 2,00,000. The rate of growth of population is 8% per annum. Find the population of that city in the year 2022.

With the increase in the price of sugar by 45%, a consumer can buy 9 kg less sugar for Rs. 1740. What is the increased price per kg of sugar?

There were two candidates in an election, total 7500 votes were cast, 20% of these votes were declared invalid, if one candidate got 55% of the valid votes then how many valid votes did the other candidate get?

If 50% of (x −y) = 30% of (x + y), then what percent of x is y? 

What is the difference between 0.6 and 0.6%?

Two students appeared for an examination. One student who scored 20 marks more than the other, his score was 60 % of the sum of their marks. What was his score?