Question

From a tank of petrol, which contains 200 litres of petrol, the seller replaces each time with kerosene when he sells 40 litres of petrol(or its mixture). Everytime he sells out only 40 litres of petrol(pure or impure). After replacing the petrol with kerosen 4th time, the total amount of kerosene in the mixture is

Answer 1

HEY MATE HERE IS YOUR ANSWER.
AFTER SELLING PETROL FOR 4 TIMES, MEANS 160 LITRES OF PETROL HAVE BEEN SOLD AND AGAIN 160 LITRES OF KEROSENE IS REPLACED. SHOW THE MIXTURE CONTAINS 40 LITRES OF PETROL AND 160 LITRES OF KEROSENE.


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