Question

a beaker is 5/7 filled by water. another 10 liters of water is needed to fill the braker to its brim . what is the capacity of the beaker

Answer 1

Hi ,

Let the capacity of the beaker = x liters

Portion filled with the water = 5x / 7

Required water to fill the beaker = 10 liters

Therefore,

x = 5x / 7 + 10

x = ( 5x + 70 ) / 7

7x = 5x + 70

7x - 5x = 70

2x = 70

x = 70 / 2

x = 35

Capacity of the beaker = x = 35 liters

I hope this helps you.

:)