Question

5 pens cost Rs. 12. How much will 20 pens cost ?

Answer 1

Step-by-step explanation:

48 rs. Since 5 pens cost 12 rs

1 pen= 12/5 = 2.4

now 20 Pens cost = 2.4x20= 48 rs

Answer 2

Step-by-step explanation:

$\huge\bf\underline{\red{❥ A}\purple{n}\pink{s}\orange{w}\blue{e}\green{r}}$

Cost of 5 pens = Rs. 12

Cost of 1 pen = 12/5

Cost of 20 pens =

$\frac{12}{5} \times 20 \\ \\ = 48$

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Cost of 20 pens = Rs. 48

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