Which pair of numbers has a common factor of 3 and a HCF of 3?

12 and 15

9 and 12

18 and 24

21 and 27

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Q1.

What is the size of the largest square tile Sameeksha should buy for a room measuring 12 ft by 16 ft?

Q2.

If Sameeksha uses tiles of size 4 ft, how many tiles will she need to cover the entire floor area of the room?

Q3.

What is the Highest Common Factor (HCF) of 12 and 16?

Q4.

Which of the following dimensions can also fit evenly into the length of Sameeksha's room apart from tiles of size 4 ft?