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Entry ticket to an exhibition ranges from 1p to 155p. You need to provide exact change at the counter. You have 155p coin. In how many parts will you divide 155p so that you will provide the exact change required and carry as less coins as possible?

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1,2,4,8,16,32,64 these contribute 127p n exact change can b provided with help of these 7 coins..rest 28p u can divide in as many parts as u can..
min no of coins = 7 coins + 28p coin = 8 coins
13 years agoHelpfull: Yes(9) No(2)

1,2,4,8,16,32,64,28 p ...... 8 coins
13 years agoHelpfull: Yes(3) No(2)

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