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Find the sum of three positive integers which are co prime

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Joined: 10 Apr 2018
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Find the sum of three positive integers which are co prime  [#permalink]

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New post 11 Apr 2019, 11:48
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A
B
C
D
E

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  45% (medium)

Question Stats:

67% (03:46) correct 33% (02:48) wrong based on 12 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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Joined: 31 Aug 2016
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Location: India
Concentration: Finance, Economics
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Re: Find the sum of three positive integers which are co prime  [#permalink]

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

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

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