Question

What is the ratio between the number of Televisions of Category B and the number of Computers of Category A?

• A. 3 : 5
• B. 5 : 3
• C. 10 : 9
• D. 5 : 6
• E. None of the above

Answer 1

The correct option is C 10 : 9

Total number of products $=900$
Number of Computers $=25$
Number of Televisions $=\frac{1}{3}rdof900=300$
Number of Refrigerators $=32$
$\therefore$ number of Mobile phones $=900-(225+300+288)=900-713=87$
Number of Televisions of Category A $=50$
$\therefore$ number of Televisions of Category B $=300-150=150$
Number of Refrigerators of Category A $=50$
$\therefore$ number Refrigerators of Category B $288-144=144$
Number of Computers of Categories B $=40$
Number of Computers of Category A $=225-90=135$
Number of Mobile phones of Category B $=\frac{1}{3}rdof87=29$
$\therefore$ number of Mobile phones of Category A $=87-29=58$

Number of Televisions of Category B $=150$
Number of Computers of Category A $=135$
$\therefore$ required ratio $=150:135=10:9$