A glass is 1/4 full. Then 70 cm³ of orange juice is poured in. The glass is now 3/5 full. What is the total volume of the glass

Answer 1

THe whole glass is X

(1/4)X + 70 = (3/5)X

5x + 1400 = 12x

1400 = 7x

x=200

1/4 * 200 = 50 at the start...

(50+70)/200 = 120/200 = 12/20 = 3/5

200 is the answer