A square boundaries are made each bearing number 1 to 10.They are mixed together and kept in a big.A card is chosen at random.Find the probability that the card chosen bears an odd number

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Solution

From a square boundaries of $1 - 10$
No. of ways of choosing an odd number is $^{5} C_{1} = 5$
Total no. of ways $= 10$
Probability $= \frac{5}{10} = \frac{1}{2}$

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A square boundaries are made each bearing number 1 to 10.They are mixed together and kept in a big.A card is chosen at random.Find the probability that the card chosen bears an odd number

From a square boundaries of 1−10No. of ways of choosing an odd number is 5C1=5Total no. of ways=10Probability=510=12

From a square boundaries of $1 - 10$
No. of ways of choosing an odd number is $^{5} C_{1} = 5$
Total no. of ways $= 10$
Probability $= \frac{5}{10} = \frac{1}{2}$