Answer:
6 bottles
Explanation:
Given the following :
SYLVIA:
Case of water = 24 bottles
Number of bottles sold = x
SAM:
case of water = 36 bottles
Number of bottles sold = 3x
Number of bottles left after sales are the same ;
Number of bottles left :
24 - x = 36 - 3x
Then solve for x
-x + 3x = 36 - 24
2x = 12
x = 12/2
x = 6
Hence, Sylvia sold 6 bottles of water.