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Clothing Store in Dallas - Math riddle

28.Math Riddles
There is a clothing store in Dallas. The owner has made his own method of pricing items. A vest costs $20, socks cost $25, a tie costs $15, and a blouse costs $30. Using the method, how much would a pair of underwear cost?
  • A.100
  • B.55
  • C.45
  • D.50
    • Explanation :  
      
      Underwear would cost 45 dollars, since there are 9 letters in "Underwear.“
      
      The cost of each item is solved by taking the number of letters in the item and multiplying it by 5.
      Example,
      
      V E S T = 4 letters * 5 = 20
      S O C K S = 5 letter * 5 = 25
      T I E = 3 letters * 5 = 15 
      
      So, 
      U N D E R W E A R = 9 letters * 5 = 45