The amount

The amount of potatoes in kg sold on Monday by three hawkers in the proportion 3:4:5, the least amount sold by one of them is 36kg. What is the amount of potato sold by each of the other two?

Correct answer:

b =  48 kg
c =  60 kg

Step-by-step explanation:

$$\begin{gathered} a=36\text{kg} \\ a:b:c=3:4:5 \\ a=3x \\ b=4x \\ c=5x \\ x=a/3=36/3=12\text{kg} \\ b=4\cdot x=4\cdot 12=48\text{kg} \end{gathered}$$

$c=5\cdot x=5\cdot 12=60\text{kg}$

Try another example