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Question
Cards, each marked with one of the numbers 6, 7, 8,..., 15, are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting a card with a number less than 10?
Options
`3/5`
`1/3`
`1/2`
`2/5`
Solution
`2/5`
Explanation:
All possible outcomes are 6, 7, 8................15.
Number of all possible outcomes = 10
Out of these, the numbers that are less than 10 are 6, 7, 8 and 9.
Number of favourable outcomes = 4
∴ P(getting a number that is less than 10) = `4/10 - 2/5`
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