WBCS.LIVE practice question

A box contains 2 black, 6 green and 4 yellow balls. If 2 balls are picked up at random, the probability that both are green-coloured is:

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 522
  2. 122
  3. 222
  4. 322

Correct answer and explanation

Correct answer: 522