Sphere Week 8

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WALT: find percentages of quantities

Work out the following:

1. a) 10% of 30 =

b) 30% of 120 =

c) 25% of 84 =

d) 40% of 160 =

e) 75% of 16 =

f) 15% of 60 =

Work out the following:

g) 35% of 60 =

h) 45% of 160 =

i) 5% of 240 =

j) 31% of 200 =

k) 95% of 240 =

l) 82% of 300 =

Work out the following:

Find the answers to these using benchmark

Percentages. All of the 800 students at a

Summer camp were asked what sort of TV

Programme they liked to watch best This pie chart shows the results.

1. What do the percentages add up to? Is this what you would expect? Why?
2. How many students liked each sort of programme?
3. What percentage did NOT like comedy best?

Work out the following:

About 40% of NZ’s 27 million hectares is not farmed.

1. About how many hectares of NZ is not farmed?
2. About how much is farmed?
3. About 31% of NZ is sheep farmed. How many hectares is this?

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Casey worked out that he spent about 36% of his time asleep. About how many hours each week does he spend asleep?