Discussion Forum



 Study the following pie-charts, carefully and answer the questions given below:

 Distribution of total number of Dell Laptops Sold by 5 Stores

2322021441_pie chart 15a.JPG

Distribution of Number of Laptops (both Dell and Lenovo) Sold by 5 Stores in 2011

2322021971_pie chart 15b.JPG

 

 

1)

What is the average number of Dell Laptops sold by stores P, R, and S together?  


A) 424

B) 432

C) 428

D) 454

Answer:

Option B

Explanation:

Percent of Dell Laptops sold by P, R and S together

= 15% + 30% + 9% = 54%

Total Dell Laptops sold by, P, R and S together

= $\frac{54}{100}\times2400$ = 1296

Average = $\frac{1296}{3}$ = 432