What is the smallest number of chairs that can be arranged in rows of 12 or 15?

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120

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Solution

The correct option is D 60
If chairs are arranged in 1

Rows of 12 Rows of 15

12 :- 12, 24, 36, 48

15 :- 15, 30, 45,

$∴$ The least number of chairs required to arrange in rows of 12 and 15 is 60 their LCM

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What is the smallest number of chairs that can be arranged in rows of 12 or 15?

The correct option is D 60If chairs are arranged in 1 Rows of 12 Rows of 15 12 :- 12, 24, 36, 48 15 :- 15, 30, 45, ∴ The least number of chairs required to arrange in rows of 12 and 15 is 60 their LCM

The correct option is D 60
If chairs are arranged in 1

Rows of 12 Rows of 15

12 :- 12, 24, 36, 48

15 :- 15, 30, 45,

$∴$ The least number of chairs required to arrange in rows of 12 and 15 is 60 their LCM