Question

a tank is one third full of oil after taking out 7 liters of oil from it it is just one fourth full how much tank oil does tank hold

Answer 1

Hey.

Let the tank can hold x litres of oil.

so, it's 1/3 rd will be x/3
but a/q,
x/3 - 7 =x/4
so, x/3-x/4=7
or, (4x-3x)/12=7
or, x =12×7=84

so, tank can hold 84 litres of oil.

Thanks.

Answer 2

Hey friend, Harish here.

Here is your answer.

Let total capacity of the tank be 'x'.

So, The tank tank is initially filled upto x/3 .

After removing 7 L it becomes x/4.

So, 

$\frac{x}{3} - 7 = \frac{x}{4}$

$\frac{x}{3} - \frac{x}{4} = 7$

$\frac{x}{12} = 7$

$x = 84$

Therefore total capacity of the tank is 84L..
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