Two numbers are in the ratio 3 : 5 and their LCM is 225.

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Two numbers are in the ratio 3 : 5 and their LCM is 225. The smaller number is

1. 45
2. 60
3. 75
4. 90

Correct Option: A

Let the numbers be 3x and 5x.
∴ LCM = 15x

∴ 15x = 225 ⇒ x =	225	= 15
	15

∴ Smaller number = 3x = 3 × 15 = 45