Question

If xy= 20 , then x and y varies directly.

Answer 1

Answer:

bro x value is 10

and y value is 10

Answer 2

Step-by-step explanation:

We know that x∝y and x4 when y=20. Thus x=ky for some constant k. Putting x=4 and y=20 in this, we get 4=20k or k=1/5. Hence

Now take x=12 in this. We obtain y=12×5=60

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