W ∝ L2 and W = 6 when L = 4. If L = √17…

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Mathematics JAMB 2007

W ∝ L2 and W = 6 when L = 4. If L = √17 find W

  • 67/8
  • 65/8
  • 63/8 checkmark
  • 61/8

The correct answer is: C

Explanation

W ∝ L2
W = KL2
K = W/L2
K = 6/42
K = 6/16 = 3/8
W = 3/8 L2
W = 3/8(√17)2
W = 3/8 x 17
W = 51/8 = 63/8

There is an explanation video available .

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