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How many letters of the word DECIBEL look exactly the same when it is reflected in water?

Competition practiceMirror & Water Images
  • A5
  • B6
  • C7
  • D1

Step-by-Step Solution

A letter is unchanged in water if it has a horizontal line of symmetry. D, E, C, I, B and E all have one; only L turns over. So 6 letters. (1 is the count for an upright mirror, where only I is unchanged; 7 forgets that L turns over.)
Answer: B) 6

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