Question

if cost of 2 dozen pens is rupees 120 find cost of 4 pens

Answer 1

1 dozen = 12

2 dozen pens = 24 pens

Cost of 24 pens = ₹120

Cost of 1 pen = ₹120/24

Cost of 4 pen = ₹5x4

= ₹20.

*Unitary Method

Answer 2

Answer:

2 Dozen=12+12=24 Pens 120Rupees

24÷120 =5

5x4=20

4 pens cost=20 rupees