Multiple choice

A bag contains 15 one rupee coins, 25 two rupee coins and 10 five rupee coins. If a coin is selected at random from the bag, then the probability of not selecting a one rupee coin is

  1. 0.30

  2. 0.70

  3. 0.25

  4. 0.20
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total coins = 15 + 25 + 10 = 50. One rupee coins = 15. Probability of selecting one rupee coin = 15/50 = 0.3. Probability of NOT selecting one rupee coin = 1 - 0.3 = 0.7.

AI explanation

The bag contains 15 one rupee coins, 25 two rupee coins, and 10 five rupee coins, giving a total of 50 coins. The probability of selecting a one rupee coin is 15/50, which is 0.30. The probability of not selecting a one rupee coin is 1 minus 0.30, which equals 0.70.

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