1. Write these ratios as fractions in their simplest form:
(a) 3 : 10
(b) 12 : 20
(c) 9 : 4
(d) 2 : 1
2. Write these percentages as ratios in their simplest form:
(a) 20%
(b) 85%
(c) 150%
(d) 100%
3. Express the following ratios as simply as possible:
(a) 6 cm : 12 cm
(b) 14 : 21
(c) $30 : $40
(d) 5 kg : 20 kg : 25 kg
4. Make the units of the following ratios the same and then simplify:
(a) 200 g : 1 kg
(b) $3 : 50c
(c) 100 m : 1 km
(d) 20 minutes : 2 hours
5. (a) If 3 : 5 = x : 20, find the value of x.
(b) If d : 5 = 9 : 15, find the value of d.
(c) If 
, find x.
(d) Find x if 
6. (a) Divide 63 into two parts in the ratio 2 : 5
(b) Two people share $85 in the ratio 4 : 1.
How much does each person receive?
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(c) A piece of wood, of length 72 cm, |
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