General Aptitude › Chain Rule › Question #5577
Single Choice Moderate

QIf 5 students utilize 18 pencils in 9 days how long at the same rate will 66 pencil last for 15 student?

ID: #5577 Chain Rule 445 views
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#5577Q ID
ModerateDifficulty
Chain RuleTopic
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  • A 11 ✔ ✖
  • B 12 ✔ ✖
  • C 13 ✔ ✖
  • D 14 ✔ ✖
Correct Answer

Explanation

Solution

Let the required number of days be x

more students,less days(indirect proportional)

more pencils,more days(direct proportional)

students 15:5::9:x

pencils 18:66::9:x

(15×18×x)=(5×66×9)

x=5×66×9/15×18

x=11

Hence the required number of days is 11

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