1.

Half of the volume of Petrol and kerosene mixture of ratioi 7:5 is converted into a mixture of ratio 3:1 by the substitution (or replacement) method. While the mixture of ratio 7:5 was formed from the mixture of 7:3 by adding the Kerosene in it. If 240 litres petrol is required in the replacement method, what is the total amount of Kerosene was added to prepare the mixture of 7:5?

Answer»

a. 100 litres
b. 400 litres
c. 50 litres
d. 200 litres

Answer :D


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