A bag contains 30 balls numbered 1 to 30. One ball is drawn at random. Find the probability that the number of the draw will be a multiple of 5 or 7
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Answer:
1/3
Step-by-step explanation:
Balls numbered = 1 to 30
Multiple of 5 = 5 , 10 , 15 , 20 , 25 , 30 = 6 Balls
Multiple of 7 = 7 , 14 , 21 , 28 = 4 Balls
(Multiple of 5) U (Multiple of 7) = 10 Balls
Probability = 10/ 30 = 1/3
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