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Three friends visit a library every 4, 6 and 10 days respectively. They were all there on 1 March. On which date will they next all be there together?

Competition practiceNumber System, HCF & LCM
  • A1 May
  • B29 April
  • C30 April
  • D31 March

Step-by-Step Solution

days. 1 March + 60 days: 30 days take us to 31 March, 30 more to 30 April.
Answer: C) 30 April

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