Answer:
840
Step-by-step explanation:
Given


Required
Determine the number of rankings
The term "ranking" as used in this question implies permutation and the required is calculated using:

Where


So:






<em>Hence, number of ranking is 840</em>
Answer:
Step-by-step explanation:
500 ml more then the small bottle
Answer:
D 1.44
Step-by-step explanation:
the answer is the last one 1.44