PSLE
Shannon had to sew 195 blazers. She sewed 7 blazers each day from Monday to Friday and 12 each day on Saturday and Sunday. Starting on a Tuesday, on which day of the week did Shannon finish sewing all the blazers? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Shannon sewed on the first week = 4

Number of blazers that Shannon completed for from Tuesday to Sunday on the first week
= 4 x 7 + 2 x 12 
= 28 + 24
= 52

Number of blazers left to sew
= 195 - 52
= 143

Number of blazers that Shannon could sew per week from second week onwards
= 5 x 7 + 2 x 12
= 35 + 24
= 59

Number of weeks that Shannon needed to sew 143 blazers
= 143 ÷ 59
= 2 r 25

Number of days that Shannon needed to sew 25 blazers
= 25 ÷ 7
= 3 r 4

Shannon needed 1 more day to finish sewing the remaining 4 blazers.

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

Answer(s): 4