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Question
Kannu made a necklace of 17 sea-shells. How many such necklaces can be made using 100 sea-shells?
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Solution
There are 100 sea shells and 17 sea shells are required to make one necklace. So,
Sea shells left after making 1 necklace = 100 – 17 = 83
Sea shells left after making 2 (second) necklace=83-17 =66
Sea shells left after making 3 (third) necklace =66-17 =49
Sea shells left after making 4 (fourth) necklace= 49 – 17 = 32
Sea shells left after making 5 (fifth) necklace = 32 – 17 = 15 .
15 sea shells left after making of 5 necklaces.
So, only 5 necklaces can be made using 100 sea-shells. And after making necklaces 15 sea-shells will be left unused.
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