Question

A pen costs Rs. 4.50. find the
Cost of 5 dozen pens.​

Answer 1

Answer

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

_______________

-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1 cost of pen = 4

Please mark my answer as brilliant

Answer 2

Answer:

Rs. 270

Step-by-step explanation:

Cost of 1 pen = Rs. 4.50

1 dozen = 12, so 5 dozen pens = 60 pens

Cost of 5 dozen pens = Rs. 4.50 × 60

= Rs. 270