Question

There are 50 roses in a tray. There is at least 1 red rose among any 24 randomly selected roses, and there is 1 white rose among any 28

randomly selected roses. How many white roses are there? QUICK PLS

Answer 1

So probability of red rose is 1/24

Probability of white rose is 1/28

TOTAL roses= 50

• P(A)=(1/24)
• P(B)=1/28=0.035
• P(AUB)=1/50

P(A$\cap$ B)=1/24+1/28-1/50

• 175+150-84/4200
• 241/4200=0.057

So Probability of white is

• 0.057-0.035
• 0.022