| Direction: Read the following information carefully and answer the given question. There are 5 red balls, 6 green balls and 7 blue balls in a box. |
| If three balls are drawn randomly what is the probability that one of them is red and the remaining two are blue? |
A) 5/34
B) 25/136
C) 35/272
D) 45/272
E) 15/136
Correct Answer: C
Solution :
| Required probability |
| \[=\frac{{}^{5}{{C}_{1}}\times {}^{7}{{C}_{2}}}{{}^{18}{{C}_{3}}}=\frac{5\times 21}{816}=\frac{35}{272}\] |
You need to login to perform this action.
You will be redirected in
3 sec
