Mrs Toh baked some wafers of three flavours, which were chocolate chip, apricot and cheese. She baked four times as many chocolate chip wafers as apricot wafers and thrice as many cheese wafers as chocolate chip wafer. Given that she baked 66 more cheese wafers than apricot wafers, how many wafers did she bake?
Number of apricot wafers = 1 u
Number of chocolate chip wafers = 4 u
Number of cheese wafers = 3 x 4 u = 12 u

Number of more cheese wafers than apricot wafers
= 12 u - 1 u 
= 11 u

11 u = 66

1 u = 66 ÷ 11 = 6

Number of chocolate chip wafers
= 4 u
= 4 x 6
= 24

Number of cheese wafers
= 12 u
= 12 x 6
= 72

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

Answer(s): 102