Perimeter and Area (Quiz)

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Q.1 A wooden board has dimensions 12 m x 3 m. It was made into four parts. On each part a man wrote some letters. Area of each letter is equal to its alphabetic number. (i.e., for F the alphabetic number is 6, so its area is 6 m and for N the alphabetic number is 14. So area is 1+4 = 5m). If he wrote the letters GURU and cut those from the board, find the area of remaining board.
  21 m 2
  18 m2
  14 m2
  16 m2