question 13,14,15,16 Working alone, Jaidee can mop a warehouse in 12 hours. Juli
ID: 3035704 • Letter: Q
Question
question 13,14,15,16
Working alone, Jaidee can mop a warehouse in 12 hours. Julia can mop the same warehouse in 9 hours. Find how long it would take them if they worked together. Gabriella can clean an attic in 9 hours. Matt can clean the name attic in 15 hours. If they worked together how long would it take them? It takes 11 Ted 11 minutes to sweep n porch. can sweep the same porch in 9 minutes. If they worked together how long would it take them? Working alone, it takes Heather nine hours to pick forty bushels of apples. Matt can pick the same amount in 14 hours. Find how long it would take them it they worked together.Explanation / Answer
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Given
Time taken by Jadee to mop warehouse = 12 hrs
=>Work done by Jadee in 1 hr = x/12 (where x is assumed as total work)
Time taken by Julia to mop warehouse = 9 hrs
Work done by Julia in 1 hr = x/9
Total time taken when both julia and Jadee are working = x / (x/12 + x/9)
= 12*9/ (12 + 9)
= 12*9 / 21
= 36/7 hrs Solution
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