Difference between revisions of "1973 AHSME Problems/Problem 7"
Rockmanex3 (talk | contribs) (Solution to Problem 7) |
Made in 2016 (talk | contribs) (→See Also) |
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==See Also== | ==See Also== | ||
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[[Category:Introductory Algebra Problems]] | [[Category:Introductory Algebra Problems]] | ||
Latest revision as of 12:58, 20 February 2020
Problem
The sum of all integers between 50 and 350 which end in 1 is
Solution
The numbers that we are adding are 
. The numbers are part of an arithmetic series with first term 
, last term 
, common difference 
, and 
terms. Using the arithmetic series formula, the sum of the terms is 
.
See Also
| 1973 AHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 6 |
Followed by Problem 8 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 • 31 • 32 • 33 • 34 • 35 | ||
| All AHSME Problems and Solutions | ||
