Saina asked the shopkeeper a change for a ₹ 100 note in smaller denominations. If the shopkeeper gave her back 6 banknotes of denominations ₹ 50 and ₹ 10, then how many ₹ 10 banknotes did she get?
A
5
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B
6
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C
4
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D
8
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Solution
The correct option is A 5 Two ₹ 50 banknotes sum up to ₹ 100. But, it is given that she was given ₹ 10 banknote(s) as well.
So, the number of ₹ 50 banknotes she was given is one.
Remaining amount to be given is ₹ 50, which is contributed by ₹ 10 banknotes. So, the number of ₹ 10 banknotes is 50 ÷ 10 = 5.