Question

A bag contains 6 five-rupee coins, 9 two-rupee coins and 5 one-rupee coins. if three coins are drawn at random, then find the probability for a draw yielding the minimum possible amount

Answer 1

if is possible to any coins

Answer 2

Answer:

The probability for a draw yielding the minimum possible amount 0.009

Step-by-step explanation:

Given that a bag contains 6 five-rupee coins, 9 two-rupee coins and 5 one-rupee coins. Three coins are drawn at random then we have to find the probability for a draw yielding the minimum possible amount i.e

we have to find the probability of drawn 3 one-rupee coins so that minimum possible amount yield.

A bag contains number of coins

five-rupee coins-6

two-rupee coins-9

one-rupee coins-5

Total number of coins=20

$\text{Probability of drawn 3 one-rupee coins}=\frac{\text{Favourable outcomes }}{\text{Total number of outcomes }}$

$=\frac{^5C_3}{^20C_3}=\frac{10}{1140}=0.00877\sim 0.009$

The probability for a draw yielding the minimum possible amount 0.009