Question

3. It is given that varies directly with
and r= 3 when r = 9. Find the value of
when i'=45.

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Answer 1

Answer:

As p varies inversely as q then let,

p=qk, where k is a constant 

As p=7 and q=3 satisfies so,

7=3k 

k=21

Answer 2

Answer: as p varies inversely as q the let,

p=qk, where k is a constant ,

as p=7,q=3 satisfies

7=3k

k=22