A box contains 5 blue balls, 3 red balls and 2 white ball...
A box contains 5 blue balls, 3 red balls and 2 white balls. Two balls are selected from the box with replacement. Find the probability of obtaining two blue or two red balls
17/50
3/25
1/50
3/250
Correct answer is A
Blue balls = 5
Red balls = 3
White balls = 2
Total = 10
P(Two blue) = 5/10 * 5/10 = 25/100
P(Two Red) = 3/10 * 3/10 = 9/100
∴P(Two blue or two red balls)
= 25/100 + 9/100
= 34/100
= 17/50
A box contains 40 identical balls of which 10 are red and 12 are blue. if a ball is selected at...
What is the answer when 2434\(_6\) is divided by 42\(_6\)? ...
If \(\frac{x}{a+1}+\frac{y}{b}\) 1. Make y the subject of the relation...