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The total number of peoples using both the two mobile services in the year 2010 is what percent of total number of people using both the two mobile services in the year 2011?

A 72

B 48

C 60

D 54

E None of these

Solution

Correct Answer: Option C

⇒Total number of peoples using both the two mobile services in the year 2010 –

= (50 + 40) × 1000 = 90,000

⇒Total number of peoples using both the mobile services in the year 2011 –

= (80 + 70) × 1000 = 150,000

Now,
⇒Required percentage \(= \frac{{90,000}}{{150,000}} \times 100\% = 60\%\)

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