Question

unitary method

1) Find the cost 10 pens is 25 rupees & the cost of 4 pens is ?
Ans) 10 pen cost is 25 rupees
1 pen cost is 25 rupees
4 pens cost is 2.5 x 4
10.0
=10.0
Formal
1) many to one is = division
2) one to many is = Multipliction
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Answer 1

Answer:

10

Step-by-step explanation: 25/10

                                             =2.5

   2.5 *4

  = 10

Answer 2

your answer is₹10

Step-by-step explanation:

cost of 10 pens = 25

cost of 1 pen is = 25/10

hence cost of 4 pens = 25/10 × 4 = 10 answer

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