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WAEC Mathematics 2010 Paper
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© africaexams.com
Question : 3
Total: 49
A car uses one litre of petrol for every 14km. If one of petrol cost N63.00, how far can the car go with N900.00 worth of petrol?
420km
405km
210km
200km
Validate
Solution:
1 litre = N63.00
xlitres = N900.00
x x N63 = N900 x 1 litre
x =
900
63
×
l
i
t
r
e
x =
100
7
litres
Also, 1 litre = 14km
100
7
= y
y x 1 litre =
100
l
i
t
r
e
7
x 14km
y = 20km
© africaexams.com
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