ID: Class: 12 Subject: Math Topic: Probability Type: Mcq Year: 2025

Question:

A box has 4 green, 8 blue and 3 red pens. A student picks up a pen at random, checks its colour and replaces it in the box. He repeats this process 3 times. The probability that at least one pen picked was red is:
  • A. \(\frac{124}{125}\)
  • B. \(\frac{1}{125}\)
  • C. \(\frac{61}{125}\)
  • D. \(\frac{64}{125}\)