Cost of 5 pens is ₹ 60 and 15 pencils is ₹75. Find ratio of cost of 1 pencil
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Answer:
Cost of 1 pen is rupees 6
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Solution!!
The concept of unitary method has to be used here. We have to find the cost of 1 pencil. The cost of 5 pens is also given but we will ignore that part because it has nothing to do with what is asked. The cost of 15 pencils is given.
→ Cost of 15 pencil = Rs 75
Now, we have to find the cost of 1 pencil. It will be less than the cost of 15 pencils so we will divide.
→ Cost of 1 pencil = Rs 75 ÷ 15
→ Cost of 1 pencil = Rs 5
Hence, we got the cost of 1 pencil which is Rs 5.
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