This bar graph shows the production and sale of mobile phones by the different companies (in thousands):

Important for :
1
In which of the companies the percentage sale of mobile phones is the highest?
» Explain it
B
Mobile phones sold by Nokia

 = 72 × 100 = 84.70% 85

Mobile phones sold by Samsung

 = 81 × 100 = 90% 90

Mobile phones sold by Lava

 = 60 × 100 = 85.71% 70

Mobile phones sold by Micromax

 = 35 × 100 = 70% 50

Mobile phones sold by HTC

 = 52 × 100 = 80% 65

Highest sale% = Samsung

Hence, option B is correct..

2
What is the difference between the total unsold mobile phones by Nokia and HTC together and the total unsold mobile phones by Samsung and Micromax together?
» Explain it
A
Unsold mobile phones by Nokia = 85000 – 72000 = 13000, Unsold mobile phones by HTC = 65000 – 52000 = 13000

Unsold mobile phones by Samsung = 90000 – 81000 = 9000, Unsold mobile phones by Micromax = 50000 – 35000 = 15000

According to the question,

Difference = (13000 + 13000) – (9000 + 15000)

= 26000 – 24000 = 2000

Hence, option A is correct.

3
What is the average of unsold mobile by all the companies?
» Explain it
D
Unsold mobile (Nokia) = 85000 – 72000 = 13000

Unsold mobile (Samsung) = 90000 – 81000 = 9000

Unsold mobile (Lava) = 70000 – 60000 = 10000

Unsold mobile (Micromax) = 50000 – 35000 = 15000

Unsold mobile (HTC) = 65000 – 52000 = 13000

Average = (13000 + 9000 + 10000 + 15000 + 13000)/5

= 60000/5 = 12000

Hence, option D is correct.

4
If the production of the mobile phones of Apple company is 20% more than the production of the mobile phones of the Lava company and the mobile phones sold by Apple company is 80% of the mobile phones sold by Samsung company, find the unsold mobile phones by Apple company.
» Explain it
E
Production of the mobile phones of the apple company = 70000 × 120% = 84000

Sale of the mobile phones of the apple company = 81000 × 80% = 64800

Unsold mobile phones = 84000 – 64800 = 19200

Hence, option E is correct.

5
The total mobile phones sold by Nokia company and Micromax company together is approximately what % of the mobile phones produced by the same company together?
» Explain it
B
Total mobile phones sold by Nokia and Micromax = 72000 + 35000 = 107000

Total mobile phones produced by Nokia and Micromax = 85000 + 50000 = 135000

Reqd %

 = 107000 × 100 = 79.25% ≈ 80% 135000

Hence, option B is correct.