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The Kind Grandparents (Posted on 2003-09-30) Difficulty: 3 of 5
When you were born, both of your rich grandparents made a deal with your parents, to do with what money they'll give you for birthdays. Grandad's deal was :

I'll give you 1 for your first birthday. Then, the amounts that I give you each year will double every time

and Grandma said :

I will start by giving you 1 for your first birthday. Then, the amount I give you will be the combined total of all the last birthday presents that I have ever given you up to that point. Plus, every birthday you have that's a multiple of five, I'll give you an extra five pounds.

a)What amount of money do they each pay you for your 15th birthday


Who would have given you the most after 27 years?

No Solution Yet Submitted by Lewis    
Rating: 3.7778 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Nitting a scarf | Comment 11 of 17 |
There's so much polite niting and picking going on here, it makes me dizzy...

However, I am not so dizzy that I can't say this.

ON 15th B-day:

Gramps: 16384
Grams : 10837
In total after 27th B-day:

Gramps: 134217727
Grams : 88756884

This is of course solved through brute force on a spreadsheet, just like everybody else :)
  Posted by ratsnstuff on 2003-10-15 05:29:07
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