# Water tank

In an empty fire tank, 2150 hl of water jetted in 5 hours. How many hectoliters of water was jetted every hour? How many hectoliters of water was in the tank after three hours?

Result

a =  430 hl
b =  1290 hl

#### Solution:

$t = 2150 \ hl \ \\ a = t/5 = 2150/5 = 430 = 430 \ \text{ hl }$
$b = 3 \cdot \ a = 3 \cdot \ 430 = 1290 = 1290 \ \text{ hl }$

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