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ICSE Class 6 Answered

If 8 people take 1 hour to load 5760 bricks on a truck, how long would it take 6 people to load 5760 bricks on the truck 
Asked by nikitasuresh0 | 24 Sep, 2018, 09:48: PM
answered-by-expert Expert Answer
8 people take 1 hour to load 5760 bricks on a truck.
 
Total Work = 8 × 1 
work done by one person = begin mathsize 16px style fraction numerator 1 over denominator 8 space cross times space 1 end fraction end style
  begin mathsize 16px style Therefore space work space done space by space 6 space people space equals fraction numerator 1 over denominator 8 space cross times space 1 end fraction space cross times space 6 space equals space 6 over 8 space equals space 1 1 third space equals space 1 space hour space 20 space mins open parentheses since space 1 third cross times space 60 space equals space 20 space mins close parentheses end style

Therefore in 1hour 20 mins, 6 people can load 5760 bricks on the truck.
Answered by Yasmeen Khan | 25 Sep, 2018, 10:43: AM

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