Question

5. 4 erasers are purchased for rs.10. Find the cost of on dozen erasers.

Answer 1

✔️✔️✔️Conversions used :-

⭕️1 dozen erasers = 12 erasers.

⭕️1 eraser costs Cost / number of erasers

=10/4=2.5

Given that :-

⭕️4 erasers are :- ₹10

⭕️12 erasers would be worth :-

=2.5×12

=₹30


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Answer 2

1 dozen eraser = 12 erasers
If 4 erasers worth rs 10
cost of 1 eraser = 10/4 = 2.5
cost of 12 eraser = 12 × 2.5 = 30

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