Arithmetic Aptitudes › Chain Rule › Question #5578
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QIf 20 men can built a wall 56 m long in 6 days what length of a similar wall can be built by 35 men in 3 days?

ID: #5578 Chain Rule 210 views
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#5578Q ID
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Chain RuleTopic
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  • A 47 ✔ ✖
  • B 48 ✔ ✖
  • C 49 ✔ ✖
  • D 50 ✔ ✖
Correct Answer: Option C

Explanation

Solution

Let the required length be x metres

More men ,more length built(direct proportional)

Less days,less length built (direct proportional)

men 20:35::56:x

Days 6:3::56:x

20×6x=35×5×56

x=35×3×56/120=49

Hence the required length is 49 m

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