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# Find the sum of three positive integers which are co prime

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Senior Manager
Joined: 10 Apr 2018
Posts: 266
Location: United States (NC)
Find the sum of three positive integers which are co prime  [#permalink]

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11 Apr 2019, 11:48
00:00

Difficulty:

45% (medium)

Question Stats:

71% (03:11) correct 29% (02:46) wrong based on 24 sessions

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Two integers a and b are said to be co-prime if the only positive integer (factor) that divides both of them is 1. Find the sum of three positive integers which are co prime to one another such that product of first and the second integer is 437 and that of second and third integer is 551?

(A)90
(B)91
(C)81
(D)71
(E)70

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~You Just Can't beat the person who never gives up~ Babe Ruth
Intern
Joined: 31 Aug 2016
Posts: 5
Location: India
Concentration: Finance, Economics
GMAT 1: 600 Q49 V25
WE: Analyst (Consulting)
Re: Find the sum of three positive integers which are co prime  [#permalink]

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11 Apr 2019, 14:46
ab = 437 = 23 x 19
bc = 551 = 19 x 29

a+ b+c = 23 + 19 + 29 = 71
Re: Find the sum of three positive integers which are co prime   [#permalink] 11 Apr 2019, 14:46
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