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BECE Mathematics 2013 Paper
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© africaexams.com
Question : 8
Total: 40
A car uses 150 litres of petrol in 45 mins. How many litres of petrol will it use in 1 hour?
375 litres
230 litres
225 litres
200 litres
Validate
Solution:
Change the hour to minutes and use proportionality to solve.
1 hour
=
60
minutes
If 45 minutes
=
150
litres
60 minutes
=
150
litres
×
60
minutes
45
minutes
=
50
×
4
=
200
litres
Note: 15 divides 45, 3 times and 60, 4 times. 3 divides itself once and 150,50 times.
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