Valen sold 47 more cranberry biscuits than banana biscuits on Thursday. On Friday, the number of banana biscuits he sold decreased by 75% while the number of cranberry biscuits he sold remained the same. He sold each tart for $1.30. He sold a total of 207 biscuits on Friday. How much money did he receive from the sale of biscuits on both days?

	Cranberry biscuits	Banana biscuits	Total
Comparing cranberry and banana biscuits  at first	47 more
Before	4 u + 47	4 u	8 u + 47
Change		- 3 u
After	4 u + 47	1 u	5 u + 47

75% = ⁷⁵₁₀₀ = ³₄

Total number of biscuits sold on Friday
= 4 u + 47 + 1 u
= 5 u + 47

5 u + 47 = 207
5 u = 207 - 47
5 u = 160 

1 u = 160 ÷ 5 = 32

Total number of biscuits sold on Thursday
= 4 u + 47 + 4 u
= 8 u + 47

Total number of biscuits sold on both days
= 5 u + 47 + 8 u + 47
= 13 u + 94
= 13 x 32 + 94
= 416 + 94
= 510

Total amount received from the sale of biscuits on both days
= 510 x 1.30
= $663

Answer(s): $663