At a fruit stall, 336 chikoos were sold in the morning and ⁵₇ of the remaining chikoos were sold in the afternoon. As a result, the number of chikoos left became ¹₅ of the total number of chikoos at first. Given that the chikoos were sold at $3.70 in packs of seven chikoos, how much did the fruit stall receive from the sale of the chikoos in the afternoon?
Fraction of the remaining chikoos left
= 1 - ⁵₇
= ²₇

Make numerators the same.
²₇ of remaining chikoos = ¹₅ of total chikoos
²₇ of remaining chikoos = ²₁₀ of total chikoos

10 u - 7 u = 336
3 u = 336
1 u = 336 ÷ 3 = 112

Number of chikoos sold in the afternoon
= 5 u
= 5 x 112
= 560

Number of packs of seven chikoos sold in the afternoon
= 560 ÷ 7
= 80

Amount received for chikoos sold in the afternoon
= 80 x 3.70
= $296

Answer(s): $296