Ratio

1
Ratio

• Dividing into a given ratio
• Example
• Divide 80 in the ratio 14

2
Example Divide 280 cm in the ratio 2
5 Example Divide 180 in the ratio 5
1 Example Divide 120kg in the ratio 3 5
3
Example 420 is divided between two people in
the ratio 2 5. Work out what each person will
receive.
4
Example Two lines have lengths in the ratio 5
2. If the longer line is 15 cm long, find the
length of the other line.
5
Example The cost of the bills in Bills house
are usually split in the ratio electricity to gas
to water is 4 5 1. At the end of one quarter
if the total bill comes to 650 how much is spent
on each bill?
6
Example At a Robbie Williams concert attended by
boys and girls the ratio of boys to girls is 2
5. If there are 10836 people in the crowd one
evening, how many boys are there?
7
Example For every 9 teenagers who like pop music
there are 2 that does not. In a youth club of 187
members, how many do not like pop music?