Question

75 liters of Kerasin oil and 25 liters of petrol should be kept in a tin of equal size so that the two types do not mix. How many tins can be done at least?​

Answer 1

Answer:

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Also to measure 680 liters of petrol the capacity in liters must also be divisor of 680. Therefore, the required maximum quantity of the container is the H.C.F of 850 L and 680 L. Hence the maximum quantity of the container = 170 L. Required number of times = (5+4) = 9

Answer 2

Take the H.C.F of 650 and 850 of litres .. Hence the maximum quantity of the container -- 170 L. I don't cheat.