Answer :

Let the manufacturer make x and y quantity of toy A and toy B respectively.

Max P = 50x + 60y

Subject to

20x + 10y ≤ 180

⇒ 2x + y ≤ 18 … (1)

10x + 20y ≤ 120

⇒ x +2 y ≤ 12 … (2)

10x + 30y ≤ 150

⇒ x + 3y ≤ 15 … (3)

x, y ≥ 0

Corner points of constraints are (1), (2), (3) are –

For 2x + y ≤ 18

At x = 0, x = 9,

At y = 0, y = 18

For x + 2y ≤ 12

At x = 0, y = 6,

At y = 0, x = 12

For x + 3y ≤ 15

At x = 0, y = 5,

At y = 0, x = 15

Clearly, Max Profit is Rs 520, at x = 8 and y = 2.

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