Question

if the cost of 10 pens is Rs 300 how much more is the cost of 2 dozen pens

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Answer 1

Answer:

So, 12 dozen pens means, 12x12 = 144 pens

Now, it's given :

Cost of 3 pens ——— > 20 Rs

=> Cost of 1 pen ——— > 20/3 Rs

Hence,

Cost of 12 dozen(ie.144 pens) = (20/3)*144 = 960 Rs.

Answer 2

Answer

10 pens= 300 Rs

1 pen = 30 Rs

so 2 dozen or 24 pen = 30*24

= 720 Rs

Hope helps