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set out to meet

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set out to meet

by sanju09 » Thu Apr 02, 2009 5:35 am
:evil: and :twisted: set out to meet each other from two places 165 miles apart. :evil: travels 15 miles on the first day, 14 miles on the second day, 13 miles on the third day and so on. :twisted: travels 10 miles on the first day, 12 miles on the second day, 14 miles on the third day and so on. When will they meet, if they started moving towards each other at the same time?
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by Neo2000 » Thu Apr 02, 2009 1:01 pm
Arithmetic progression.

Between the two of them they cover 25,26,27... miles on 1st, 2nd,3rd... days

So you have a = 25, common difference = 1 and sum to nterms = 165

Find n
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