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#1 2020-05-15 16:46:52
- Srikantan
- Member
- From: Tanjore
- Registered: 2016-06-04
- Posts: 42
Bank
X went to a bank and tendered a cheque for RS.200 and asked for ONLY the denominations of Rs.20 , Rs. 10 and Rs. 5. The cashier had enough of all these. In how many ways can the cashier disburse the amount tendered
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#2 2020-05-15 20:40:10
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,621
Re: Bank
hi Srikantan
One way is 20 + 20 + 20 + … = 200
If you want to substitute some 10s and 5s into this, it's got to be using 5 + 5 + 5 + 5 = 20 or 10 + 10, or 10 + 5 + 5
So you ought to be able to examine all the ways of doing that.
Bob
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