Question

8. A fish tank can hold 45 litres of water
when filled to the brim. It is 3/5 filled
If 1/3 of the water is removed, how
much more water must be added in
order to fill the tank to the brim ?​

Answer 1

Step-by-step explanation:

Total = 45 ltr

Filled with ⅗ ltr

removed ⅓ ltr

so

$\frac{3}{5} - \frac{1}{3} \\ \\ \frac{9}{15} - \frac{5}{15} \\ \\ \frac{4}{15} = left$

Water Required to be filled till brim= x

$45 = \frac{4}{15} + x \\ \\ 45 - \frac{4}{15} = x \\ \\ \frac{675 - 4}{15} = x \\ \\ \frac{671}{15} = x \\ \\ 44 \frac{11}{15} \: ltr$

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