Question

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Answer 1

Răspuns:

1.

60l.............12kg s

x l ...............10kg s

x = 60×10/12

x =50l

2.

127 coloane.......2286m

103 coloane.......x m

x = 103×2286/127

x= 1854 m

3.

prima pompa....30000l......500min

a doua pompa....30000l......750min

a)

debit p1 = 30000/500= 60l/min

b)

debit p2= 30000/750= 40l/ min

debit total= 100l/min

100l........1 min

30000l..........x

x= 30000/100= 300 min

x= 5 ore