Question

If p a- when p=15 then q=4 then find
a) constant of variation
b) If p-12, find q​

Answer 1

Given :- If p ∝ 1/q , when p = 15 then q = 4, then find :-

a) constant of variation

b) If p = 12, find q ? .

Solution :-

→ p ∝ 1/q

→ p = k * (1/q) , where k is constant of variation .

given that, when p = 15, q is 4.

So,

→ p = k * (1/q)

→ 15 = k * (1/4)

→ k = 15 * 4

→ k = 60 . (a) (Ans.)

now, given p = 12, then,

→ p = k * (1/q)

→ 12 = 60 * (1/q)

→ q = (60/12)

→ q = 5 . (b) (Ans.)

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