PSLE
Vanessa had to sew 129 jackets. She sewed 7 jackets each day from Monday to Friday and 10 each day on Saturday and Sunday. Starting on a Wednesday, on which day of the week did Vanessa finish sewing all the jackets? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Vanessa sewed on the first week = 3

Number of jackets that Vanessa completed for from Wednesday to Sunday on the first week
= 3 x 7 + 2 x 10 
= 21 + 20
= 41

Number of jackets left to sew
= 129 - 41
= 88

Number of jackets that Vanessa could sew per week from second week onwards
= 5 x 7 + 2 x 10
= 35 + 20
= 55

Number of weeks that Vanessa needed to sew 88 jackets
= 88 ÷ 55
= 1 r 33

Number of days that Vanessa needed to sew 33 jackets
= 33 ÷ 7
= 4 r 5

Vanessa needed 1 more day to finish sewing the remaining 5 jackets.

Day of the week that Vanessa completed her sewing
= 4 + 1
= 5 (Fri)

Answer(s): 5