Lesson 4 (h1n1 Remediation)

Name: ________________________________( ) Marks: __________________ Class: Secondary 2 ( ) Date: ___________________ Revision Topic: Percentages 1 A survey on favourite drinks was conducted on 240 students. 20% of the students liked coffee, 15% of them liked hot chocolate, 35% of them liked orange juice and 50% of the rest liked lemon tea. (a) Calculate the percentage of students who liked lemon tea. (b) How many students liked lemon tea?

2

Mary gave 10% of her stickers to Susan, 15% of them to Rose, 10% of them to Wendy and had 130 stickers left. How many stickers did she give away altogether?

3

Peter had $20. He bought a pen with 15% of the money, a notebook with 20% of the money and a paintbrush with 8% of the money. How much money had he left?

4

Amy and Betty bought 4 oranges, 10 apples and 2 mangoes from a fruit stall. The apples and oranges cost 40c each, whereas, the mangoes cost 70c each. If Amy paid 20% of the total amount, how much did Betty have to pay?

5

A farmer collected 1500 eggs in a week. He sold 20% of them at 10c each, 25% of them at 12c each and the rest at 15c each. Find his total sale. 1

6

In 1999, a salesman's monthly income was $1200 for the first 8 months. It was 25% less for the rest of the year. His total income in 1999 was 10% more than his total income in 1998. Find his average monthly income in 1998.

7

Mr Lin buys an article and sells it to Mr Chen at a gain of 25%. Mr Chen sells the article to Mr Ang at a gain of 20%. How much money did Mr Lin pay for the article, if Mr Ang pays $360 for it?

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