PSLE
Zara had to sew 184 blouses. She sewed 5 blouses each day from Monday to Friday and 9 each day on Saturday and Sunday. Starting on a Tuesday, on which day of the week did Zara finish sewing all the blouses? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Zara sewed on the first week = 4

Number of blouses that Zara completed for from Tuesday to Sunday on the first week
= 4 x 5 + 2 x 9 
= 20 + 18
= 38

Number of blouses left to sew
= 184 - 38
= 146

Number of blouses that Zara could sew per week from second week onwards
= 5 x 5 + 2 x 9
= 25 + 18
= 43

Number of weeks that Zara needed to sew 146 blouses
= 146 ÷ 43
= 3 r 17

Number of days that Zara needed to sew 17 blouses
= 17 ÷ 5
= 3 r 2

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

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

Answer(s): 4