Question

20 pens cost Rs.50. The cost of 50 pens is

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Answer 1

Answer:

The cost of each pen= 50/20=2.5

The cost of 50 Pen= 2.5×50=125

Step-by-step explanation:

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Answer 2

Given - Cost of 20 pens

Find - Cost of 50 pens

Solution - Firstly finding the cost of 1 pen.

Cost of 1 pen = total cost/number of pens

Cost of 1 pen = 50/20

Performing division

Cost of 1 pen = Rs. 2.5

Now, finding the cost of 50 pens.

Cost of 50 pens = 2.5*50

Performing multiplication

Cost of 50 pens = Rs. 125

Hence, the cost of 50 pens is Rs. 125.