Total number of legs in a herd of goat's and hens is 40. Represent this situation in the form of a linear equation in two variables.

We know that :Number of legs of a hen = 2Number of legs of a goat = 4Let the number of hens = xLet the number of goats = yNumber of legs of x hens = 2xNumber of legs of y goats = 4yNow, according to question,    2x + 4y = 40x + 2y = 20This is the required linear equation.

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