It is claimed that 55% of marriages in the state of California end in divorce within the first 15 years. A large study was start

Out of 100 surveyed individuals, 35 work out in the morning, 45 in the afternoon, and 20 at night.

Jim is accurate.....
The ratio of morning exercisers to the whole group is 35/100.
The ratio of afternoon exercisers is 45/100.
The ratio for night exercisers is 20/100.

Response 2 centimeters per night

The mistake is present in step 3. According to the product rule, we find

(meaning that a factor of is overlooked)

Then