"My scooty gives an average of 40 kmpl of petrol. But after recent filling at the ne
Channel: Doubtnut
Date: 2020-04-05

"My scooty
 gives an average of 40 kmpl of petrol. But after recent filling at the new
 petrol pump, its average dropped to 38 kmpl. I investigated and found out
 that it was due to adulterated petrol. Petrol pumps add kerosene, which is `2/3`
cheaper
 than petrol, to increase their profits. Kerosene generates excessive smoke
 and knocking and gives an average of 18 km per 900 ml. If I paid Rs 30 for a
 litre of petrol, what was the additional amount the pump-owner was making?
(a) Rs
 1.75 (b) Rs 1.80 (c)
 Rs 2 (d) Rs 2.30"