A hairdresser mixes bleach powder and peroxide in the ratio of 1:3 .if the mixture is 175 ml , calculate the amount of peroxide (in ml) used?

Let x be the amount of bleach powder used in the mixture.

According to the given ratio, the amount of peroxide used is 3 times the amount of bleach powder used.

So, the amount of peroxide used = 3x

The total amount of the mixture is 175 ml.

Therefore, x + 3x = 175
4x = 175
x = 175/4
x = 43.75 ml

So, the amount of peroxide used = 3x = 3 * 43.75 = 131.25 ml

Therefore, the amount of peroxide used in the mixture is 131.25 ml.