Page 121 - MAT KS3 Y8 Cambridge CheckPoint

End-of-unit review

End-of-unit review

1 Write these percentages as fractions in their simplest terms.
a 90% b 40% c 5% d 2.5%
2 Calculate these amounts.
2
a 60% of 120 metres b 43% of 15 metres c 66 % of 27 kg d 9.5% of 5800
3
3 There were 7200 cars involved in a survey. 17% were driven by women.
a What percentage were driven by men? b How many were driven by men?
4 One year, out of 365 days, 29% were sunny and 42% were cloudy.
a How many days were sunny? b How many days were cloudy?

5 On Friday 460 people visited a museum.
a There were 20% more people on Saturday. How many visited on Saturday?
b On Sunday there were 15% fewer than on Friday. How many visited on Sunday?

6 812 people made a contribution to a charity.
Read what Ahmad says.

If we get 20% more contributions we will
have more than 1000.

Is he correct? Give a reason for your answer.
7 17% tax is added to the cost of meals sold in a restaurant.
Here are some prices before tax. Work out the price when tax is added.
a $7.55 b $19.10 c $45.99

8 In a sale, a shop reduces prices by 65%. What will be the reduced prices of items that cost:
a $50 b $85 c $229?

9 On Thursday morning, a shop had 468 customers. 314 were women and 75 were children.
a What percentage were women? b What percentage were not children.
10 The number of students in a school fell from 629 last year to 574 this year.
What is the percentage reduction?
11 This table shows the value of a painting Year 1992 2002 2012
at different times.
Find the percentage increase or decrease Value ($) 750 1250 1150
in value:

a from 1992 to 2002 b from 2002 to 2012 c from 1992 to 2012.

12 This table shows the numbers of people
Town Under 25 years old 25 or more
who live in two towns. It is separated into
X 4825 7362
age groups.
Y 10 209 23 627
Which town has a greater proportion of people
under 25 years old? Give percentages to justify your answer.

11 Percentages 119