How many methods are possible to make 1 rupee by using 10 paisa, 20 paisa and 50 paisa coin. It i

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22 Jun 2009 1 rupee

How many methods are possible to make 1 rupee by using 10 paisa, 20 paisa and 50 paisa coin.
It is not necessary to use all type of coins and any coin can be used more than 1 times.

OPtion

1) 10,
2) 9,
3) 8,
4) 7,
5) 6,
6) 11,
7) 12,
8) 13,
9) 14,
10) 15

Solution

0.10*10
0.10*8+0.20*1
0.10*6+0.20*2
0.10*4+0.20*3
0.10*2+0.20*4
0.20*5
0.50*1+0.10*5
0.50*1+0.20*1+0.10*3
0.50*1+0.20*2+0.10*1
0.50*2

Correct Option: 1 Best Solution (1)