Question

5 pen cost rupees 7 how much will be 20 pen cost​

Answer 1

Answer:hey mate!!!the question to your question is written below

Step-by-step explanation:

if 5 pens cost rupees 7 then 1 pen would cost 7/5rupees.then 20 pens would cost 20×7/5=4×7=28 rupees. ( because 5 and 20 gets cancelled and 5 ×4=20)

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Answer 2

Answer:

cost of 5 pen =7

cost of 1 pen =7÷5

= 1.4

cost of 20 pen = 1.4 × 20

= 28