At a fruit stall, 272 lemons were sold in the morning and ⁴₇ of the remaining lemons were sold in the afternoon. As a result, the number of lemons left became ¹₅ of the total number of lemons at first. Given that the lemons were sold at $2.50 in packs of four lemons, how much did the fruit stall receive from the sale of the lemons in the afternoon?
Fraction of the remaining lemons left
= 1 - ⁴₇
= ³₇

Make numerators the same.
³₇ of remaining lemons = ¹₅ of total lemons
³₇ of remaining lemons = ³₁₅ of total lemons

15 u - 7 u = 272
8 u = 272
1 u = 272 ÷ 8 = 34

Number of lemons sold in the afternoon
= 4 u
= 4 x 34
= 136

Number of packs of four lemons sold in the afternoon
= 136 ÷ 4
= 34

Amount received for lemons sold in the afternoon
= 34 x 2.50
= $85

Answer(s): $85