Question

The average monthly income of A, B and C is 2400. Find the montly income of
if their income ratio is in 3:4: 5 proportion.​

Answer 1

Answer:

• 1800
• 2400
• 3000

Step-by-step explanation:

Given

• Average monthly income of A , B , C is 2400.
• Income ratio of A , B , C = 3 : 4 : 5

To find

• Monthly income of A , B , C

Solution

⇛ Let A , B , C income ratio be 3x , 4x , 5x where x is any number.

⇛ Then, average = 2400

• (3x + 4x + 5x)/(3) = 2400
• (12x)/(3) = 2400
• 12x = 2400 × 3
• 12x = 7200
• x = 7200/12
• x = 600

⇛ Share of :

• A = 3x = 1800
• B = 4x = 2400
• C = 5x = 3000