number puzzle

[alison6399]

Pse help with the following

Add together 3 of the following numbers to score 55. Each Number can be used as many times as you wish. How many different ways are there

2 3 5 10 15 20 25 50

Pse show workings. Thanx

[Trevilino]

As far as I can see there's
50+2+3
25+20+10
25+25+5
25+15+15
20+20+15

Other than those I can only see combinations of each set of 3 i.e. 50+3+2, 2+50+3, 2+3+50 etc.

[MatydaLover]

2 needs 3 ... 2+3+50
5 needs 50 (2 ending 0 or 5) ... 5+25+25
10 needs 45 (1 ending 0, 1 ending 5) ... 10+20+25
15 needs 40 (2 ending 0 or 5) ... 15+20+20 ... 15+15+25
... we've included the other numbers. So 5.

But I'd check me!