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OpenStudy (anonymous):
The sum of three consecutive numbers is 57. What is the largest of these numbers?
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Mehek (mehek14):
start by 15
Mehek (mehek14):
see if 15+16+17 = 57
OpenStudy (anonymous):
the choices are 18, 19, 20, 21
Mehek (mehek14):
ok so try 18+19+20
Mehek (mehek14):
does that = 57? @nerd_3.14
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OpenStudy (anonymous):
ya
Mehek (mehek14):
so 20 is the biggest number
OpenStudy (ashleyisakitty):
Very trial and error based problem.
OpenStudy (anonymous):
ok thank you i just didnt really understand this thanks
Mehek (mehek14):
yw
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