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Question

He took 28 shells for one necklace.
112 − 28 = 84
Now he was left with 84 shells. Again he took 28 more shells for the second necklace.
• How many shells are left now? __________
Then he took shells for the third necklace.
• So he was left with ___________ shells.
• How many necklaces can Dhruv make from 112 shells? _________
• Are the shells enough for making necklaces for all his friends? ___________

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Solution

  • After making the first necklace, Dhruv was left with 84 shells.
Number of shells used for the second necklace = 28
Number of shells left with Dhruv = 84 − 28
= 56

Working:
84-2856
Thus, Dhruv was left with 56 shells after making the second necklace.
  • Dhruv took 28 more shells for making the third necklace.
Number of shells left with Dhruv after making third necklace = 56 − 28
= 28
  • Dhruv made a necklace of 28 shells for each of his three friends.
After making the necklaces for his friends, he was left with 28 shells. So, he could make one more necklace with the remaining shells.
Thus, Dhruv could make a total of 4 necklaces with 112 shells.
  • Yes, the number of shells were enough for making necklaces for all the friends. After making 3 necklaces for his friends, 28 shells were still left with Dhruv.

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