ExamBro
ExamBro
AP EAMCET · Maths · Probability

A bag contains 7 green and 5 black balls. 3 balls are drawn at random one after the other. If the balls are not replaced, then the probability of all three balls being green is

  1. A 3431720
  2. B 2136
  3. C 1235
  4. D 744
Verified Solution

Answer & Solution

Correct Answer

(D) 744

Step-by-step Solution

Detailed explanation

Given, A bag contains 7 green and 5 black balls, Now 3 balls are drawn at random one after the other, so number of ways in which we can get green ball without replacement will be C17×C16×C15=7×6×5 Now total ways of selecting 3 balls without replacement will…