If p is inversely proportional to q, and if p=0.02 when q = 5, find p when q=0.2.
2
5
0.05
None of these
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Answer:
It is given that m∝n.
∴ m = kn, where k is constant of variation
When m = 154, n = 7.
∴ 154 = k × 7
⇒ k = 1547 = 22
Therefore, the equation of variation is m = 22n.
When n = 14,
m = 22 × 14 = 308
Thus, the value of m is 308.
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