PSLE
Vanessa had to sew 245 blazers. She sewed 7 blazers each day from Monday to Friday and 10 each day on Saturday and Sunday. Starting on a Monday, on which day of the week did Vanessa finish sewing all the blazers? Give your answer in number. (Eg Mon = 1)
Number of weekdays that Vanessa sewed on the first week = 5

Number of blazers that Vanessa completed for from Monday to Sunday on the first week
= 5 x 7 + 2 x 10 
= 35 + 20
= 55

Number of blazers left to sew
= 245 - 55
= 190

Number of blazers 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 190 blazers
= 190 ÷ 55
= 3 r 25

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

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

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

Answer(s): 4