A water tank has a radius of 80cm and a length of 200cm.

it is half filled with a water.

120 litres per a day is used to water a garden.

for how many days can the garden be watered from the tank?

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20 февраля, 10:24

A water tank has a radius of 80cm and a length of 200cm.

it is half filled with a water.

120 litres per a day is used to water a garden.

for how many days can the garden be watered from the tank?

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Ответы (1)

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Айкай · Answer 1

The cylinder has volume •πR'2h•

So, transfer radius and length in metre values.

So:

R = 0.8m

L = 2m

V = πR'2h = 12.8π ~ 40.21 (m'3)

The half of V = 40.21/2 ~ 20.1 (m'3)

1m'3 has 1000 litres.

So, 20.1m'3 have 20.1*1000 = 20.100 litres.

20.100/120 = 167.5 days.

Answer: 167.5 days.

A water tank has a radius of 80cm and a length of 200cm.it is half filled with a water.120 litres per a day is used to water a garden.for how many days can the garden be watered from the tank?

A water tank has a radius of 80cm and a length of 200cm.

it is half filled with a water.

120 litres per a day is used to water a garden.

for how many days can the garden be watered from the tank?