Ex 3.7, 8 - Find least number which when divided by 6, 15 and 18

Ex 3.7, 8 - Chapter 3 Class 6 Playing with Numbers - Part 2

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Least number when divided by 6, 15, 18 and leaves remainder 0 = LCM of 6, 15, 18 So, LCM leaves remainder 0 In the question, We are asked least number which leaves remainder 5 So, Required number will be 5 more than LCM ∴ Required number = LCM + 5 ∴ LCM = 2 × 3 × 3 × 5 = 90 So, Required number = LCM + 5 = 90 + 5 = 95

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