Question : What is the smallest perfect square which is divisible by both 8 and 12?
Option 1: 100
Option 2: 144
Option 3: 121
Option 4: 196
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Correct Answer: 144
Solution : LCM of 8 and 12 = 2 × 2 × 2 × 3 = 24 To make it a perfect square, multiply 24 by 6. ⇒ 24 × 6 = 144 = 12 × 12 Hence, the correct answer is 144.
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