SOLUTION: Three numbers (does not have to be consecutive) has a sum of 77. If the second number is thrice the first and the third number is one less than twice the first, what is the third n
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Question 673656: Three numbers (does not have to be consecutive) has a sum of 77. If the second number is thrice the first and the third number is one less than twice the first, what is the third number? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Three numbers (does not have to be consecutive) has a sum of 77.
a + b + c = 77
:
If the second number is thrice the first
b = 3a
:
and the third number is one less than twice the first,
c = 2a - 1
:
Substitute
a + 3a + (2a-1) = 77
6a = 77 + 1
6a = 78
a 78/6
a = 13
what is the third number?
c = 2(13) - 1
c = 25 is the third number
