Question

Электро насос выкачивает из колодца 30 л воды за 12 секунд За какое время наполняется водой 800 литровая бочка а 1000 литровая бочка

Answer 1

30÷12=2,5

1секунда-2,5литров

800×2,5=2000

1000×2,5=2500

Answer 2

30/12=2,5 л за 1 секунду

1) 800:2,5=320с

2) 1000:2,5=400с

Answer 3

To calculate the time it takes to fill each barrel, we need to determine the rate at which the electric pump can fill the barrels.

Given information:

• The electric pump can pump 30 liters of water in 12 seconds.
• The barrels to be filled are 800 liters and 1000 liters.

First, let's find the pumping rate of the electric pump: Pumping rate = (Amount of water pumped) / (Time taken) Pumping rate = 30 liters / 12 seconds Pumping rate = 2.5 liters/second

Now, let's calculate the time it takes to fill each barrel:

For the 800-liter barrel: Time to fill 800-liter barrel = (Volume of the barrel) / (Pumping rate) Time to fill 800-liter barrel = 800 liters / 2.5 liters/second Time to fill 800-liter barrel = 320 seconds

For the 1000-liter barrel: Time to fill 1000-liter barrel = (Volume of the barrel) / (Pumping rate) Time to fill 1000-liter barrel = 1000 liters / 2.5 liters/second Time to fill 1000-liter barrel = 400 seconds

So, the 800-liter barrel will be filled in approximately 320 seconds, and the 1000-liter barrel will be filled in approximately 400 seconds.