Mrs Ng baked some cookies of three flavours, which were strawberry, blueberry and cherry. She baked twice as many strawberry cookies as blueberry cookies and thrice as many cherry cookies as strawberry cookie. Given that she baked 95 more cherry cookies than blueberry cookies, how many cookies did she bake?
Number of blueberry cookies = 1 u
Number of strawberry cookies = 2 u
Number of cherry cookies = 3 x 2 u = 6 u

Number of more cherry cookies than blueberry cookies
= 6 u - 1 u 
= 5 u

5 u = 95

1 u = 95 ÷ 5 = 19

Number of strawberry cookies
= 2 u
= 2 x 19
= 38

Number of cherry cookies
= 6 u
= 6 x 19
= 114

Total number of cookies that he baked
= 19 + 38 + 114
= 171

Answer(s): 171