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Multiples of 6 up to 350 = 350/6 = 58 (take only whole number before the decimal part) Multiples of 7 up to 350 =350/7 = 50 Multiple of 42 (6×7) up to 350 = 350/42 = 8 So, total such numbers are = 58 + 50 – 8 = 100 Required Probability = 100/350 = 2/7
12, 13, 22, 47, 96, ?
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