Question

50 pts!!!
❤hyy guys❤
⏩how much pure alcohol must be added to 400ml of a 15% solution to make it's strength 32%?⏪​

Answer 1

Step-by-step explanation:

quantity of alcohol in 400ml solution=15/100×400=60

Let,Xml of alcohol is added

then we have

(60+x)/(400+x)=32/100

6000+100x=12800+32x

68x=6800

x=6800/68

x=100ml

Answer 2

Step-by-step explanation:

quantity of alcohol in 400ml solution=15/100×400=60

Let,Xml of alcohol is added

then we have

(60+x)/(400+x)=32/100

6000+100x=12800+32x

68x=6800

x=6800/68

x=100ml