Question

A glass is $\frac{1}{3}$full. Then 40cm³ of orange juice is poured in.
The glass is now $\frac{5}{7}$ full. What is the total volume of the glass?

Answer 1

Answer:

(5/7) -(1/3) ==== 40

(15-7)/21 ==== 40

8/21 part ==== 40

1 part = 21*5 = 105cm³ (Ans.)

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