Mrs Loh baked some shortbreads of three flavours, which were strawberry, apple and chocolate chip. She baked four times as many strawberry shortbreads as apple shortbreads and thrice as many chocolate chip shortbreads as strawberry shortbread. Given that she baked 66 more chocolate chip shortbreads than apple shortbreads, how many shortbreads did she bake?
Number of apple shortbreads = 1 u
Number of strawberry shortbreads = 4 u
Number of chocolate chip shortbreads = 3 x 4 u = 12 u

Number of more chocolate chip shortbreads than apple shortbreads
= 12 u - 1 u 
= 11 u

11 u = 66

1 u = 66 ÷ 11 = 6

Number of strawberry shortbreads
= 4 u
= 4 x 6
= 24

Number of chocolate chip shortbreads
= 12 u
= 12 x 6
= 72

Total number of shortbreads that he baked
= 6 + 24 + 72
= 102

Answer(s): 102