Family Birthdays

Solution

Mom   14      Dad   28      Bill   9       Hada   18     

Jon   10      Kate  22      Wes   24     

Explanation

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5
6 7 8 9
birthday cake
10
birthday cake
11 12
13 14
birthday cake
15 16 17 18
birthday cake
19
20 21 22
birthday cake
23 24
birthday cake
25 26
27 28
birthday cake
29 30 31

Bill's birthday is first.
The first birthday is on the 9th.
Bill's birthday is on the 9th.

Jon's birthday is the day after Bill's.
The day after the 9th is the 10th.
Jon's birthday is on the 10th.

Dad's birthday is last.
The last birthday is on the 28th.
Dad's birthday is on the 28th.

Mom's birthday is on the same day of the week as Dad's birthday.
Dad's birthday is on a Monday.
The other birthday on a Monday is the 14th.
Mom's birthday is on the 14th.

Hada's birthday is the same week as Mom's birthday.
The birthday in the same week as Mom's is on the 18th.
Hada's birthday is on the 18th.

Kate's birthday is after Hada's birthday but is before Wes's birthday.
There are 2 more birthdays left.
One is on the 22nd and one is on the 24th.
Hada's birthday is on the 18th.
The birthday after the 18th but before the 24th is on the 22nd.
Kate's birthday is on the 22nd.

The only birthday left must be Wes's.
It is on the 24th.
Wes's birthday is on the 24th.



Houghton Mifflin Math Grade K