# Chapter 5 | Application of Percentage | Class-7 DAV Secondary Mathematics

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## Unit 5 Worksheet 1 || Application of Percentage

1. A property dealer charges 2% commission from a buyer or a seller of property. If Mr Ram Lal paid 20,000 as a commission for purchasing a flat, what was the value of the flat?

2. A 3-star hotel in Delhi charges 10% sales tax on the price of the food taken. Mr Saxena and his family had food for 685. Find the total money he had to pay.

3. A painter paints 240 sq. feet of a wall. If this is 48% of the total wall surface, what is the area of the wall in sq. feet?

4. The salary of a person was increased by 15%. If his salary now is 9,936, what was his initial salary?

5. In a co-educational school, 45% of the total students are girls. If there are 440 boys in the school, find the number of girls in the school.

6. A potato seller sells 70% of the total potatoes and still has 150 kg potatoes left with him. Find the weight of potatoes he had originally.

7. In Rohan’s birthday party, 90% of his friends came and three friends did not come. Find the total number of friends Rohan has.

8.In a quiz competition, Ravi gave answers of 70% of the questions. He failed to give answers of six questions. Find the total number of questions asked in the quiz competition.

9.Out of a class of 45 students, five were absent, 30% of the remaining had failed to do homework. Find the number of students who did the homework.