if 3 pen cost 20 rupees what is cost of 5 pens jldi batao urgent h plz
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if 3 pen cost 20 rupees what is cost of 5 pens jldi batao urgent h plz
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ANSWER
Rs. 28
Step-by-step explanation:
Given, cost of 5 pens =Rs.20
cost of 1 pen =20/5
= Rs. 4
cost of 7 such pens =4×7
=28
Answer:
[tex]3 \: pens \: cost \: = 20 \: rupees \\ 1 \: pen \: cost \: = \frac{20}{3} \\ 5 \: pens \: cost \: = \frac{20}{3} \times 5 \\ = \frac{100}{3} = 33.3 \: rupees[/tex]