Mathematics, 03.10.2019 12:20 julie47d
Two pipes running simultaneously can fill a tank in 8 hrs. of birth pipes run for 4 hours . and the first then closed, it requires 12 hours more than for the second to fill the pool. how long does it take the first pipes to fill the pool.
a. 11
b. 22
c. 10
d.12
Answers: 1
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Two pipes running simultaneously can fill a tank in 8 hrs. of birth pipes run for 4 hours . and the...
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