Latest MBA Aptitude Question SOLUTION: a reduction in the price of petrol by 10% enables a motorist to buy 5 gallons more $180. find the original price of petrol.4$/gallon5$/gallon6$/gallon10$/gallon

1) 4$/g

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(#M40014598) MBA question averages, percentages, profit loss and interest Keep an EYE

a reduction in the price of petrol by 10% enables a motorist to buy 5 gallons more $180. find the original price of petrol.4$/gallon5$/gallon6$/gallon10$/gallon

1) 4$/gallon
2) 5$/gallon
3) 6$/gallon
4) 10$/gallon

Asked In MBA (11 years ago)

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KRISHNA CHANDRA UPADHYAY  (10 years ago)

I think this is the way to solve it not really sure

Let X be no of litres of petrol & n be the price per litre

Eqn 1 : x*n = 180

Eqn 2 : (x+5) * (0.9n) = 180

Simplifying eqn 2

0.9xn + 4.5n = 180

Substituting eqn 1 in eqn 2

0.9 ( 180) + 4.5n = 180

n = 18/4.5 = 4

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