At a fruit stall, 280 chikoos were sold in the morning and ⁵₈ of the remaining chikoos were sold in the afternoon. As a result, the number of chikoos left became ¹₆ of the total number of chikoos at first. Given that the chikoos were sold at $4.20 in packs of four chikoos, how much did the fruit stall receive from the sale of the chikoos in the afternoon?
Fraction of the remaining chikoos left
= 1 - ⁵₈
= ³₈

Make numerators the same.
³₈ of remaining chikoos = ¹₆ of total chikoos
³₈ of remaining chikoos = ³₁₈ of total chikoos

18 u - 8 u = 280
10 u = 280
1 u = 280 ÷ 10 = 28

Number of chikoos sold in the afternoon
= 5 u
= 5 x 28
= 140

Number of packs of four chikoos sold in the afternoon
= 140 ÷ 4
= 35

Amount received for chikoos sold in the afternoon
= 35 x 4.20
= $147

Answer(s): $147