PSLE
Joelle had to sew 206 blouses. She sewed 7 blouses each day from Monday to Friday and 13 each day on Saturday and Sunday. Starting on a Monday, on which day of the week did Joelle finish sewing all the blouses? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Joelle sewed on the first week = 5

Number of blouses that Joelle completed for from Monday to Sunday on the first week
= 5 x 7 + 2 x 13 
= 35 + 26
= 61

Number of blouses left to sew
= 206 - 61
= 145

Number of blouses that Joelle could sew per week from second week onwards
= 5 x 7 + 2 x 13
= 35 + 26
= 61

Number of weeks that Joelle needed to sew 145 blouses
= 145 ÷ 61
= 2 r 23

Number of days that Joelle needed to sew 23 blouses
= 23 ÷ 7
= 3 r 2

Joelle needed 1 more day to finish sewing the remaining 2 blouses.

Day of the week that Joelle completed her sewing
= 3 + 1
= 4 (Thu)

Answer(s): 4