SOLUTION: { 2, 5,6,7,10} How many different pairs of unequal numbers can be chosen from the set above so that their sum is greater than 10 ? ( do not consider a pair such as 5,2 to be dif

Algebra.Com
Question 304748: { 2, 5,6,7,10}
How many different pairs of unequal numbers can be chosen from the set above so that their sum is greater than 10 ? ( do not consider a pair such as 5,2 to be different from 2,5.)
A 7 b 10 c 14 d 32 e 60


Answer by themathtutor2009(81)   (Show Source): You can put this solution on YOUR website!
Pairs:
2,10........2+10=12
5,6........5+6=11
5,7........5+7=12
5,10........5+10=15
6,7........6+7=13
6,10........6+10=16
7,10........7+10=17

answer: A

RELATED QUESTIONS

How many different integers can be represented as a sum of four distinct numbers chosen... (answered by Edwin McCravy,greenestamps)
How many different integers can be represented as a sum of four distinct numbers chosen... (answered by Edwin McCravy)
How many different integers can be represented as a sum of four distinct numbers chosen... (answered by ikleyn)
How many different integers can be represented as a sum of four distinct numbers chosen... (answered by ikleyn)
How many different sums can be obtained by adding two different integers chosen from the... (answered by richard1234)
A 4-digit number is selected from the numbers {1,2,3,4,5,6} where the digits are selected (answered by Boreal,ikleyn)
please let me know if my answer true or false Three numbers are chosen at random... (answered by Theo)
Hi, how would I work this question out? Thank for your help in advance:) A partition of... (answered by Fombitz)
How many pairs of distinct integers chosen from a set of odd integers between 6 and 16... (answered by CubeyThePenguin)