Primary Divisonal 2012/5

Problem for Primary Group from Divisional Mathematical Olympiad will be solved here.
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Phlembac Adib Hasan
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Primary Divisonal 2012/5

Unread post by Phlembac Adib Hasan » Thu Dec 11, 2014 1:11 pm

Once upon a time there was a shop which sold a packet of five sweets for $10$ taka. But if someone bought less than five sweets, they would take $3$ taka for each sweet. What was the price of $39$ sweets?
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Raiyan Jamil
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Re: Primary Divisonal 2012/5

Unread post by Raiyan Jamil » Thu Dec 11, 2014 3:33 pm

5 sweets for 10 taka. 35 sweets for 70 taka.
1 sweet for 3 taka. 4 sweets for 12 taka.
(35+4)or 39 sweets for (70+12) or 82 taka.
So, ans is 82 taka.
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