What is best?

• 2 liters of milk at Php150, or
• 1.5 liters of milk at Php95?


Sagot :

150 / 2 = 70/liter of milk
95 / 1.5 = 63.3/litter of milk

1.5 liters of milk at Php.95.00


1st:  2 liters = Php 150
2nd:  1.5 liters = Php 95

The LCM of 2 and 1.5 is 3 so we multiply each equation by 1.5 and 2 respectively.

1st: 
1.5 * 2 liters = 1.5 * Php 150
3 liters = Php 225

2nd:
2 * 1.5 liters = 2 * Php 95 
3 liters = Php 190

Therefore the second one is more preferable.