Question

A glass is 1/3 full.

Then 63cm3 of orange juice is poured in.
The glass is now 5/8 full.
What is the total volume of the glass?

Answer 1

216 cm³

Explanation:

1/3x + 63 = 5/8x

subtract 1/3x from each side; (1/3x = 8/24x and 5/8x = 15/24x)

63 = 7/24x

7x = 63(24)

7x = 1512

x = 216