Question

What will be the ratio of petrol and
kerosene in the final solution formed by
mixing petrol and kerosene that are
present in three vessels in the ratio 4 : 1,
5: 2 and 6:1, respectively?
(h) 83.22​

Answer 1

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Step-by-step explanation:

Let, the capacity of each vessel is x.

Petrol and kerosene in the ratio 4 : 1 means, Out of 5 units of mixture, 4 are of petrol and one is of kerosene.

In the first vessel, petrol is 4/5th and kerosene is 1/5th of x.

In the second vessel, petrol is 5/7th and kerosene is 2/7th of x.

In the third vessel, petrol is 6/7th and kerosene is 1/7th of x.

After mixing,

Quantity of petrol = (4x/5) + (5x/7) + (6x/7) = 83x/35

Quantity of kerosene = (x/5) + (2x/7) + (x/7) = 22x/35

So, ratio of petrol to kerosene 

=83/35÷22÷35

=83/22