Question

The number of televisions produced is approximately what percent of the total number of calculators and washing machines produced together?

• A. $63\%$
• B. $55\%$
• C. $59\%$
• D. $51\%$
• E. $67\%$

Answer 1

The correct option is B $55\%$

Number of mobile phones $=\frac{1650\times 24}{100}=396$
Number of pen drives $=1650\times \frac{1}{6}=275$
Number of calculators $=1650\times \frac{14}{100}=231$
Number of televisions and washing machines $=748$
Number of washing machines $=T+50$
$T+W=748T+T+50=7482T=748-50=698\therefore T=\frac{698}{2}=349$
Washing machines $=349+50=399$
Required percentage $=\frac{349}{231+399}\times 100=\frac{349}{630}\times 100=55.39\approx 55\%$