Answer:
Let the total number of days be 100
Mamma Temte bakes six pies each day at $ 2 each
Hence , cost of 6 pies= $ 2 ×6=$12
Total cost for 100 days = 12×100= $1200
On 11% of days she sold 2 pies at $ 4 each
Total selling price of pies for 11 days= 2×11×4= $ 88
On 17% of days she sold 4 pies at $ 4 each
Total selling price of pies for 17 days= 4×4×17= $272
On 72 % of days, she sold all six pies at $ 4 each
Total selling price of 72 days= 4×6×72=$ 1728
Total selling price of pies= 88+272+1728= $ 2028
Net profit= 2028-1200=828
Profit%=
×100
Profit%= 69%
Hence, correct answer is 69%