Page 143 - NUMINO_WB_3B
P. 143
163-P2-1
Calendar
In an unknown month, the sum of the dates of three consecutive Fridays
is 30. Find the date of the first Friday of this month.
12345
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
Step 1. A week has 7 days. If the date of the first Friday is 1st, what are
the dates of the second and third Fridays?
Step 2. What is the sum of the dates of three consecutive Fridays found
in Step 1?
Step 3. Follow the steps above to find the date of the first Friday.
Calendar
In an unknown month, the sum of the dates of three consecutive Fridays
is 30. Find the date of the first Friday of this month.
12345
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
Step 1. A week has 7 days. If the date of the first Friday is 1st, what are
the dates of the second and third Fridays?
Step 2. What is the sum of the dates of three consecutive Fridays found
in Step 1?
Step 3. Follow the steps above to find the date of the first Friday.
