Discussion Forum



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

distribution of total number of cellular phones (both Nokia and Samsung) sold by six stores in October

 2322021765_pie chart 18.JPG

Ratio of the number of Nokia cellular phones sold to that of Samsung cellular phones sold

Store Ratio
P 4:3
Q 3:1
R 5:4
S 7:6
T 1:4
U 11:10
1)

The total number of cellular phones (both Nokia and Samsung) sold by store Q increased by 15% from October to November and the same of cellular phones sold by store T increased by 5% from October to November. What was the total number of cellular phones sold by stores Q and T together in November?


A) 3540

B) 3720

C) 3640

D) 3420

Answer:

Option C

Explanation:

Store

Nokia Cellular Phones

Samsung Cellular Phones

Total number of cellular phones

P

896

672

1568

Q

840

280

1120

R

1120

896

2016

S

1568

1344

2912

T

440

1792

2240

U

704

640

1344

Number of cellular phones (both Nokia and Samsung) sold by store Q in October

= $\frac{10}{100}\times11200$ = 1120

Number of cellular phones (both Nokia and Samsung) sold by store Q in November

= $\frac{115}{100}\times1120$ = 1288

Number of cellular phones (both Nokia and Samsung) sold by Store T in October

= $\frac{20}{100}\times11200$ = 2240

Number of cellular phones (both Nokia and Samsung) sold by Store T in November

= $\frac{105}{100}\times2240$ = 2352

Total number of cellular phones (both Nokia and Samsung) sold by Q and T Together in November

= 1288 + 2352 = 3640