Question

half dozen pens cost Rs 42.72.find the cost of 8 pens.​

Answer 1

Answer:

56.96

Step-by-step explanation:

half dozen =12/2 = 6

so cost of 6 pens = 42.72

Cost of 8 pens = x

Cross multiplication

6(x) = 42.72(8)

6x = 341.76

x  = 341.76 / 6

x = 56.96