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?
-
A.
420km -
B.
405km -
C.
210km -
D.
200km
Correct Answer: Option D
Explanation
1 litre = N63.00
xlitres = N900.00
x x N63 = N900 x 1 litre
x = (frac{900}{63} times litre)
x = (frac{100}{7}) litres
Also, 1 litre = 14km
(frac{100}{7}) = y
y x 1 litre = (frac{100litre}{7}) x 14km
y = 20km