Mrs Oh baked some scones of three flavours, which were chocolate chip, cherry and strawberry. She baked thrice as many chocolate chip scones as cherry scones and twice as many strawberry scones as chocolate chip scone. Given that she baked 85 more strawberry scones than cherry scones, how many scones did she bake?
Number of cherry scones = 1 u
Number of chocolate chip scones = 3 u
Number of strawberry scones = 2 x 3 u = 6 u

Number of more strawberry scones than cherry scones
= 6 u - 1 u 
= 5 u

5 u = 85

1 u = 85 ÷ 5 = 17

Number of chocolate chip scones
= 3 u
= 3 x 17
= 51

Number of strawberry scones
= 6 u
= 6 x 17
= 102

Total number of scones that he baked
= 17 + 51 + 102
= 170

Answer(s): 170