Traditional Culture Encyclopedia - Travel guide - Xiao Ming has traveled for four days, and it is known that the sum of the dates of these four days is 56. What are these four days?

Xiao Ming has traveled for four days, and it is known that the sum of the dates of these four days is 56. What are these four days?

Discussion method:

1 When these four days are within a month, the sum of the dates of the two middle days is 56/2=28, but one of these two days is odd and the other is even, so it is not valid. You can also set the date of the first day as n, the second day as N+ 1, the third day as N+2, and the fourth day as N+3, so the sum of the four days is: N+ (.

So 4N=50 doesn't hold.

So four days may be a month.

2. When there is only one day across the month, the first day can be 28 days, 29 (February), 30 days, 365,438+0 days (month and month).

If the first day is 28 days, the sum of the other three days can't be 56-28. The sum of the other three dates is 1+2+3=6.

So only one day in a month is invalid.

When two days pass the moon, the sum of the dates of the first two days may be 27+28 = 55; 29+30=59; 30+3 1=6 1 The rest is for next month, but the sum of the two dates of next month is 1+2=3.

That's not right either.

To sum up, this question is wrong.