2 Answers
The length a person can jump is inversely proportional to his weight…
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The length a person can jump is inversely proportional to his weight. If a 20kg person can jump 1.5m, find the constant of proportionality.
- A. 30
- B. 20
- C. 15
- D. 60
QUICK ANSWER…
A
SOLUTION…
Let length = L, and weight = W,
L α 1/W
L = K/W
LW = K
Hence, 1.5 × 20 = K = 30
Now for the right answer to the above question:
- Option A is correct.
- Option B is incorrect.
- C is incorrect.
- D is not the correct answer.
QUICK TIPS…
You may please note these/this:
- Constant k is usually introduced when the sign of proportionality is removed.
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/ culled from 2015 JAMB-UTME mathematics past question 15 /
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