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Aman wants to tile a rectangular courtyard 6 m 30 cm long and 4 m 80 cm wide using identical square tiles of the largest possible size, with no tile cut.
What is the side of each square tile (in cm)?

Class 10HCF and LCMNumber Systems
  • A27
  • B33
  • C60
  • D30

Step-by-Step Solution

Length = 630 cm, width = 480 cm. Largest square tile = HCF(630, 480). ; HCF = 5 = 30 cm.
Answer: D) 30

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