2 and 8 have fixed places - 2 in the ten-thousands place and and 8 in the ones place (number must be even).
There remaining 3 numbers left can be arranged in

ways.
So, there are 6 different ways.
Answer:
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
If two batches of soup serve 8 people, then 1 batch will serve 8/2 = 4 people.
This means that:
1/4 = x/120
x = 30 batches
Each batch needs two onions, so we do 30 * 2 = 60 onions.