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  • What is the least number which when doubled will be exact...
Multiple choice

What is the least number which when doubled will be exactly divisible by 14, 21, 30?

  1. 105

  2. 120

  3. 150

  4. 180

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 LCM of 14, 21 and 30 14 = 2 x 7 21 = 3 x 7 30 = 2 x 3 x 5

LCM = 2 x 3 x 5  x 7 = 210 Half of  210 = 105

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