ruchi has enough money to send 14 parcels weighing 500 grams.Find the weight of each parcel if she can send 20 parcels for the same money.Find also the constant of variation

Weight of 14 parcels = 500 gram
So weight of each parcel = 50014
Then weight of 20 parcels = 50014×20 = 50007 = 714.285 gram

Suppose N = number of parcels sent
W = weight of each parcel
Therefore N is inversely proportional to W.
And so, k = N×WL
Therefore k is constant of variation.
Therefore the constant of variation is Price per gram.

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