Question

The total population (males and females) of city R watching Mentalist is what percent more than the total population (male and female) of city T watching the same TV series?

• A. $8\frac{3}{7}$
• B. $8\frac{5}{7}$
• C. $8\frac{4}{7}$
• D. $7\frac{3}{7}$
• E. $7\frac{4}{7}$

Answer 1

The correct option is C $8\frac{4}{7}$

Total number of people in city R watching Mentalist
$\frac{50000\times 16}{100}+\frac{50000\times 22}{100}=8000+11000=19000$
Total number of people in city T watching Mentalist
$=\frac{50000\times 15}{100}+\frac{50000\times 20}{100}=7500+10000=17500$
$\therefore$ Required percentage $=\frac{19000-17500}{17500}\times 100$
$=\frac{1500\times 100}{17500}=\frac{60}{7}=8\frac{4}{7}\%more$