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# Two mechanics were working on your car. One can complete the

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Intern
Joined: 03 May 2012
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Own Kudos [?]: 15 [6]
Given Kudos: 4
Math Expert
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Posts: 94370
Own Kudos [?]: 641399 [4]
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Intern
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Posts: 5
Own Kudos [?]: 15 [3]
Given Kudos: 4
Director
Joined: 03 Aug 2012
Posts: 587
Own Kudos [?]: 3219 [2]
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Concentration: General Management, General Management
GMAT 1: 630 Q47 V29
GMAT 2: 680 Q50 V32
GPA: 3.7
WE:Information Technology (Investment Banking)
Re: Two mechanics were working on your car. One can complete the [#permalink]
2
Kudos
Rate(1)=1/6
Rate(2)=1/8

Combined = 14/48

Work done in 2 days=7/12

Work left = 5/12

Rate * Time = Work left

1/8 * Time = 5/12

Time=10/3
GMAT Club Legend
Joined: 03 Jun 2019
Posts: 5291
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Given Kudos: 160
Location: India
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Re: Two mechanics were working on your car. One can complete the [#permalink]
[

Work done by both in a day = 1/6+1/8=7/24

Work done by both in 2 days = 7/12
Work left = 5/12

Days required by new guy to finish the work = 5/12 *8 = 10/3

IMO D

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Re: Two mechanics were working on your car. One can complete the [#permalink]
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Math Expert
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