PERCENTAGES

1 Find 10% of £120. Use this value to find (a) 20% (b) 15% (c) 5% (d) 30% (e) 2½% (f)7½% (g) 35% of £120

2 Work out the percentage of the world's land area for each country.

Country

Land Area (nearest 1000 km sq. )

Africa 30264
Antarctica 13209
Asia 44250
Europe 9907
North America 24398
Oceania 8534
South America 17793
TOTAL 148355

 

3 The table below shows the population in different parts of the world in 1950 and 1990 (figures in millions)

Country 1950 1990
Africa

222

642

Asia

1558

3402

Europe

393

498

South America

166

448

North America

166

276

Oceania   13 26
TOTAL 2518 5292

What percentage of the world's population

(a) Lived in Asia in 1950?

(b) Lived in Europe in 1950?

(c) Lived in North America in 1990?

(d) Lived in Africa in 1990?

(e) What was the ratio of the population of North America to Asia in 1990?

(f) What was the ratio of the population of Europe to Africa in 1950?

 

4

 

Left handed

Right handed

Girls

Boys

32

28

180

168

 

(a) What % are boys?

(b) What % are girls and left handed?

(c) What % are boys and right handed?

(d) Find the ratio of left handed to right handed pupils

5

Peas Beans Sprouts

Approximately what % of the garden is (a) beans (b) sprouts (c) peas

 

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