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Question Jincy opened her piggy bank. She found 8 coins of ₹ 1, 9 coins of ₹ 2 and 5 coins of ₹ 5. She wants to buy stickers worth ₹ 38. What possible combination of coins can she use to pay the exact amount?
Jincy has: ₹ 1 × 8 = ₹ 8 ₹ 2 × 9 = ₹ 18 ₹ 5 × 5 = ₹25
Total amount she has: ₹ 8 + ₹ 18 + ₹ 25 = ₹ 51
Now, she wants to buy stickers worth ₹ 38, so she needs to pay only ₹ 38.
One of the possible combinations of coins is:
₹ 5 × 5 = ₹ 25
₹ 2 × 6 = ₹12
₹1 × 1 = ₹ 1
Total = ₹ 25 + ₹ 12 + ₹ 1 = ₹ 38
Another possible combination is:
₹ 5 × 4 = ₹ 20
₹ 2 × 5 = ₹ 10
₹ 1 × 8 = ₹ 8.
Total = ₹ 20 + ₹ 10 + ₹ 8 = ₹ 38.
(Answer may vary)