Question

If 5 pens cost 20 then how much do 20 pens cost

Answer 1

Answer:

80

Step-by-step explanation:

1 pen cost = 20/5

=4

20 pen cost = 20×4 = 80

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Answer 2

Answer:

5=20 then 1:4 after 20*4=80. therefore 20 pens having cost Rs: 80...