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CMI2020-A: 3

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Some children are given boxes containing sweets. Harish is happy if he gets either gems or toffees. Rekha is happy if she gets both bubble gums and peppermints. Some of the boxes are special, which means that if the box contains either gems or toffees, then it also contains bubble gums and peppermints. If Harish and Rekha are given boxes that are not special, which of the following can we infer?

  1. Harish is happy
  2. No bubble gums in Rekha’s box
  3. No toffees in Harish’s box
  4. There are peppermints in Rekha’s box
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