Question

In the given graph the coordinates of M₁ are

(a) x₁ = 5, x₂ = 30

(b) x₁ = 20, x₂ = 16

(c) x₁ = 10, x₂ = 20

(d) x₁ = 20, x₂ = 30

Answer 1

(c) x₁ = 10, x₂ = 20

4x₁ + 2x₂ = 80 (or) 2x₁ + x₂ = 40

2x₁ + x₂ = 40 … (1)

2x₁ + 5x₂ = 120 … (2)

(1) – (2) ⇒ -4x₂ = -80

x₂ = 20

But, 2x₁ + x₂ = 40

2x₁ + 20 = 20

x₁ = 10