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Two numbers are in the ratio 3: 8 and there L.C.M. is 168. The smaller number is

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Two numbers are in the ratio 3: 8 and there L.C.M. is 168. The smaller number is
1. 24
2. 27
3. 48
4. 21
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Correct Answer - Option 4 : 21

Let the numbers be 3x and 8x.

Their L.C.M. = 24x

According to question,

⇒ 24x = 168

⇒ x = 168/24 = 7

∴ Smaller number is 3x = 3 × 7 = 21

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