Traditional Culture Encyclopedia - Travel guide - Find the formula for question 7

Find the formula for question 7

At grandma’s house: 56x1/4=14 days

Travel: 56x2/7=16 days

Activities: 56x3/14=12 days

At home: 56-14-16-12=14 days

Conclusion:

The number of days at grandma’s house is the same as that at home.

Traveling is 4 days longer than participating in "summer camp" activities.

The sum of the number of days at grandma’s house and at home is equal to the sum of the number of days in travel and summer camp activities.