Post Office Puzzle | Python Fiddle

"""
1.”A POST-OFFICE PERPLEXITY.

In every business of life we are occasionally perplexed by some ch
ance question that for the moment staggers us. I quite pitied a 
young lady in a branch post-office when a gentleman entered and 
deposited a crown on the counter with this request: "Please give 
me some twopenny stamps, six times as many penny stamps, and make up 
the rest of the money in twopence-halfpenny stamps." For a moment she 
seemed bewildered, then her brain cleared, and with a smile she handed
 over stamps in exact fulfilment of the order. How long would it have 
 taken you to think it out?
"""

#there are a total of 60 pence in a crown
#just go from  1 to 7 and see which one satisfies the statement

for num in range(1,8):
    twopenny=num
    onepenny=6*num
    twohalfpen=(60-2*twopenny-onepenny)/2.5
    if int(twohalfpen)==twohalfpen:
        print str(twopenny)+' twopenney stamps'
        print str(onepenny)+ ' onepenny stamps'
        print str(int(twohalfpen))+ ' twopence-halfpenny stamps'

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