Question

cost of ten pens is rs 70. What is cost of 3 pens​

Answer 1

10 pens=70

1 pen=7

therefore 3 pens = 3×7

=21 Rs

Answer 2

cost of 10 pens = 70

cost of 1 pen = 70/10

= 7

then cost of 3 pens = 7×3 =

$\huge\boxed{21rs}$

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