Question
A quantity p is directly proportional to quantity q.
When p = 63, then q = 21. When q = 35, then find the value of p.Solution
p ∝ q, which means, when 'p' increases then 'q' will also increase and when 'p' decreases then 'q' will also decrease. So, Let, p = k X q (where, 'k' is a proportionality constant) ATQ,
63 = k X 21 So, k = (63/21) = 3 When 'q' = 35, then,
p = 3 X 35 = 105
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