Question

3 faucets A,B,C can fill a cistern from empty to full in 45mins, 35mins, and 25 mins respectively. When the cistE Faucets A,B,C discharge chemical solutions X,Y,Z respectively. What is the proportion of solution Zin the liquid in the tank af

• A. $\frac{63}{143}$
• B. $\frac{72}{151}$
• C. $\frac{67}{173}$
• D. $\frac{81}{167}$

Answer 1

Answer: (A)

$\frac{63}{143}$

Answer 2

The correct option is (A):$\frac{63}{143}$