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प्रश्न
Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table and knocked out one button on the floor. What is the probability that the button on the floor is blue?
पर्याय
`7/20`
`3/5`
`1/5`
`1/4`
उत्तर
`bb(1/5)`
Explanation:
Probability = `"Number of blue buttons on the table"/"Total number of buttons on the table"`
= `4/20` ...[Divide both numerator and denominator by 4]
= `1/5`
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