Question : The line chart given below shows the cost price and value of profit of 6 articles L, M, N, O, P, and Q.
Selling price = Cost price + Profit
A1 = The value of the average selling price of all articles.
A2 = The value of the average cost price of L, M, N, and O.
What is the value of (A1 + A2)?
Option 1: 1875
Option 2: 1425
Option 3: 1675
Option 4: 1025
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Correct Answer: 1675
Solution :
Average cost price for L, M, N, O = A2 = $\frac{800 + 700 + 500 + 600}{4}=\frac{2600}{4}= 650$
Now, we have to calculate the average selling price.
Selling price = Cost price + Profit
⇒ Selling price of L, M, N, O, P, and Q = A1 = (800 + 300) + (700 + 250) + (500 + 400) + (600 + 500) + (400 + 350) + (900 + 450)
= 1100 + 950 + 900 + 1100 + 750 + 1350
= 6150
So, Average selling price = $\frac{6150}{6} = 1025$
$\therefore$ A1 + A2 = 1025 + 650 = 1675
Hence, the correct answer is 1675.
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