Question

give me answer
$and \: \: how$
​

Answer 1

Answer:

The answer is 67 watt

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Answer 2

given

Two appliance power 200w and 100w

voltage = 250v

Now if two appliance are connected in series

then power equivalent

$\frac{1}{peq} = \frac{1}{p1} + \frac{1}{p2} + - - - \frac{n}{pn} \\ \\ \frac{1}{peq} = \frac{1}{200} + \frac{1}{100} \\ \\ peq = \frac{200 \times 100}{200 + 100} \\ \\ peq = \frac{200 \times 100}{300} \\ \\ peq = \frac{200}{3} \\ \\ peq = 66.66 \\ \\ by \: round \: off \\ \\ peq = 67watt$

so Answer b is correct

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