Question

a bag contains 6 white and 4 red . If a person draws 2 balls and receives rs. 10 and rs. 20 for a white and red balls respectively , then his expected amount is

Answer 1

Here's your answer my friend:

Hope This Helps :)

Answer 2

Answer:

The total amount will be Rs. 28

Step-by-step explanation:

Hey Mate,

Given ,

6 White  and 4 Red.

Draws 2 Balls.

Probability of draws Both white balls

=> ( ⁶ C ₂ / ¹⁰ C ₂ )

=> ( 15/45 )

=> ( 2/ 3 )

Probability of draws Both Red balls

=> ( ⁴ C ₂ / ¹⁰ C ₂ )

=> ( 6/ 45 )

Probability of draws One white and One Red ball.

=> ( ⁶ C ₁ ×  ⁴ C ₁ / ¹⁰ C ₂ )

=> ( 24/ 45 )

So,

The total amount will be

=> { (2/ 3) × 20 } × { (4/ 45) × 40 } × { (24/ 45) × 30 }

=> Rs. 28