To address the problem, we first establish that the objective is to achieve a 15% total profit on 35 kg of sugar. The cost price (CP) for the entire quantity is calculated assuming a CP of $1 per kg, resulting in a total CP of $35.
The initial intent is to mark up the price by 20% to achieve a profit. The marked price (MP) per kg is determined as follows:
MP = CP × (1 + Profit%) = $1 × (1 + 0.20) = $1.20
The sales distribution proceeds as follows:
The discounted price per kg is $1.20 × (1 - 0.10) = $1.08. The total revenue from this sale is 15 × $1.08 = $16.20.
A total profit of 15% is targeted on the initial investment of $35. Therefore, the required selling price (RSP) for all the sugar must be:
RSP = CP × (1 + Overall Profit%) = $35 × 1.15 = $40.25
The revenue generated from the first two sales amounts to $6 + $16.20 = $22.20.
To achieve the targeted overall profit of 15%, the remaining revenue needed from the 12 kg of sugar is:
Required additional revenue = $40.25 - $22.20 = $18.05
Consequently, the selling price per kg for the remaining sugar must be $18.05 / 12 = $1.504.
To ascertain the percentage increase (p%) above the original MP ($1.20), we use the formula:
New price = MP × (1 + p/100)
Substituting the values: $1.504 = $1.20 × (1 + p/100).
Solving for p:
1 + p/100 = 1.504 / 1.20 = 1.25333
p/100 = 1.25333 - 1 = 0.25333
p = 0.25333 × 100 = 25.333%. Rounded to the nearest integer, p is 25%.
Therefore, p is closest to 25.
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