Question:
A Kiddy bank contains hundred 50 paise coins, fifty ₹1 coins, twenty ₹2 coins, and ten ₹5 coins. If one of the coins will fall out when the bank is turned upside down, what is the probability that the coin is a ₹5 coin?
A Kiddy bank contains hundred 50 paise coins, fifty ₹1 coins, twenty ₹2 coins, and ten ₹5 coins. If one of the coins will fall out when the bank is turned upside down, what is the probability that the coin is a ₹5 coin?
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The probability of an event happening is calculated as the ratio of favorable outcomes to the total outcomes.
Updated On: Apr 17, 2025
- \(\frac{5}{9}\)
- \(\frac{5}{18}\)
- \(\frac{1}{9}\)
- \(\frac{1}{18}\)
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The Correct Option is C
Solution and Explanation
The total number of coins is:
\[
100 \, (\text{50 paise}) + 50 \, (\text{₹1}) + 20 \, (\text{₹2}) + 10 \, (\text{₹5}) = 180
\]
The number of ₹5 coins is 10. Therefore, the probability of picking a ₹5 coin is:
\[
P(\text{₹5 coin}) = \frac{10}{180} = \frac{1}{18}
\]
Thus, the correct answer is option (4).
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