"The quantity of water (in ml) needed to reduce 9 ml shaving lotion containing
Channel: Doubtnut
Date: 2020-04-05

"The quantity of water
 (in ml) needed to reduce 9 ml shaving lotion containing 50% alcohol to a
 lotion containing 30% alcohol, is 
`4`
b. `5`
c. `6`
d. `7`"