Question
Manu has only ₹ 1 and ₹ 2 coins. If he wants to buy a notebook that costs ₹ 23, what is the least number of coins he needs ?
Options:
A .
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B .
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C .
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D .
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Answer: Option D
:
D
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:
D
Options B,C and D make ₹23.
Option B: Ten ₹2 coins + Three ₹ 1 coins = 20 + 3 = ₹23 - number of coins used =13
Option C: Nine ₹2 coins + Five ₹ 1 coins = 18 + 5= ₹23 - number of coins used =14
Option D: Eleven ₹2 coins + One ₹ 1 coin = 22 + 1 = ₹23 - number of coins used =12
Hence, we use the least number of coins in option D, that is 12.
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