Question

120 copies cost is rs 600 what will be 400 copies cost

Answer 1

Answer:

Step-by-step explanation:

Cost of 120 copies = ₹600

Cost of 1 copy = 600/120 = ₹5

Cost of 400 copies = 5(400) = ₹2000

Answer 2

Answer:

Rs 2000

Step-by-step explanation:

By using unitary method

Let the Cost be x

Copies       Price

120              600

400               x             (cross multiply)

x=600×400÷120

x=240000÷120

x=2000