Question

The cost of 80 pens is 168 . To buy 20 pens, how much money is needeed?​

Answer 1

Step-by-step explanation:

cost of 80 pens is 168

then cost of 1 pen is 2.1

then 20pens×2.1

=42

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Answer 2

To buy 20 pens ,42 rupees are needed.

Hope it helps

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