Riordan sold 145 more strawberry puffs than cheese puffs on Tuesday. On Wednesday, the number of cheese puffs he sold decreased by 40% while the number of strawberry puffs he sold remained the same. He sold each tart for $2.10. He sold a total of 385 puffs on Wednesday. How much money did he receive from the sale of puffs on both days?

	Strawberry puffs	Cheese puffs	Total
Comparing strawberry and cheese puffs  at first	145 more
Before	5 u + 145	5 u	10 u + 145
Change		- 2 u
After	5 u + 145	3 u	8 u + 145

40% = ⁴⁰₁₀₀ = ²₅

Total number of puffs sold on Wednesday
= 5 u + 145 + 3 u
= 8 u + 145

8 u + 145 = 385
8 u = 385 - 145
8 u = 240 

1 u = 240 ÷ 8 = 30

Total number of puffs sold on Tuesday
= 5 u + 145 + 5 u
= 10 u + 145

Total number of puffs sold on both days
= 8 u + 145 + 10 u + 145
= 18 u + 290
= 18 x 30 + 290
= 540 + 290
= 830

Total amount received from the sale of puffs on both days
= 830 x 2.10
= $1743

Answer(s): $1743