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Find the smallest number which is divisible by 12, 15, 20 and also is a perfect square?1. 16002. 4003. 9004. 3600 |
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Answer» Correct Answer - Option 3 : 900 Concept used: LCM will be the smallest number divisible by all of the numbers and the required answer will be the multiple of LCM Calculation: 12 = 2 × 2 × 3 15 = 3 × 5 20 = 2 × 2 × 5 LCM = 2 × 2 × 3 × 5 ⇒ 60 Out of the 4 options, 900 is the multiple of 60 and also a perfect square ∴ The smallest number which is divisible by 12, 15 and 20 and also is a perfect square is 900 |
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