At a fruit stall, 312 persimmons were sold in the morning and ⁵₈ of the remaining persimmons were sold in the afternoon. As a result, the number of persimmons left became ¹₇ of the total number of persimmons at first. Given that the persimmons were sold at $2.20 in packs of six persimmons, how much did the fruit stall receive from the sale of the persimmons in the afternoon?
Fraction of the remaining persimmons left
= 1 - ⁵₈
= ³₈

Make numerators the same.
³₈ of remaining persimmons = ¹₇ of total persimmons
³₈ of remaining persimmons = ³₂₁ of total persimmons

21 u - 8 u = 312
13 u = 312
1 u = 312 ÷ 13 = 24

Number of persimmons sold in the afternoon
= 5 u
= 5 x 24
= 120

Number of packs of six persimmons sold in the afternoon
= 120 ÷ 6
= 20

Amount received for persimmons sold in the afternoon
= 20 x 2.20
= $44

Answer(s): $44