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A car uses one litre of petrol for every 14km. If one of petrol cost…

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