A livestock farmer was instructed to mix 1 litre of acaricide with 175 litres of water. calculate the amount of water he needs to mix 20 litres of acaricide...

To find the amount of water needed to mix 20 litres of acaricide, we can use the ratio of acaricide to water given in the instruction. The ratio of acaricide to water is: 1 litre of acaricide : 175 litres of water To mix 20 litres of acaricide, we can set up a proportion: 1 litre of acaricide / 175 litres of water = 20 litres of acaricide / x litres of water where x is the amount of water needed to mix 20 litres of acaricide. Solving for x: x = (175 x 20) / 1 x = 3,500 litres Therefore, the livestock farmer needs 3,500 litres of water to mix 20 litres of acaricide. The correct option is: 3500 litres