When is a number the HCF of itself and another number?

Always

Never

When it is a prime

When it is the largest number

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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?