Question

The cost of 20 pens is rupees 240. Find the cost of 60 pens.​

Answer 1

Answer:

Cost of one pen = 240÷20 = ₹12

Cost of 60 pens =60×12= ₹720.

Answer 2

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Cost of 20 pens = Rs. 240

Cost of 1 pen = $\large\frac{240}{20}$ = Rs. 12

Cost of 60 pens = Rs. 12 × 60

= Rs. 720