PSLE
Dana had to sew 93 windbreakers. She sewed 6 windbreakers each day from Monday to Friday and 12 each day on Saturday and Sunday. Starting on a Friday, on which day of the week did Dana finish sewing all the windbreakers? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Dana sewed on the first week = 1

Number of windbreakers that Dana completed for from Friday to Sunday on the first week
= 1 x 6 + 2 x 12 
= 6 + 24
= 30

Number of windbreakers left to sew
= 93 - 30
= 63

Number of windbreakers that Dana could sew per week from second week onwards
= 5 x 6 + 2 x 12
= 30 + 24
= 54

Number of weeks that Dana needed to sew 63 windbreakers
= 63 ÷ 54
= 1 r 9

Number of days that Dana needed to sew 9 windbreakers
= 9 ÷ 6
= 1 r 3

Dana needed 1 more day to finish sewing the remaining 3 windbreakers.

Day of the week that Dana completed her sewing
= 1 + 1
= 2 (Tue)

Answer(s): 2