7 pen cost rupees 56 what is the cost of 21 pens
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Cost of 7 pens = ₹56
Therefore cost of 1 pen = ₹(56/7)
Cost of 21 pens = ₹(56/7×21)
= ₹(8×21)
= ₹ 168
Hence the cost of 21 pens is ₹168.
Hope it helps you ......
Plz mark my answer as the brainliest......
Therefore cost of 1 pen = ₹(56/7)
Cost of 21 pens = ₹(56/7×21)
= ₹(8×21)
= ₹ 168
Hence the cost of 21 pens is ₹168.
Hope it helps you ......
Plz mark my answer as the brainliest......
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