A company is manufacturing boxes of three types – plastic, wood, and glass. The ratio of the numbers of plastic, wood, and glass boxes is 2 : 3 : 5. The difference between the numbers of wood and glass boxes is 144. If the number of plastic boxes is increased by 25%, then what will be the number of plastic boxes now?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 180.
Given:
The ratio of the numbers of plastic, wood, and glass boxes is 2 : 3 : 5.
The difference between the numbers of wood and glass boxes is 144
Calculations:
According to the question;
⇒ 5x - 3x = 144
⇒ 2x = 144
⇒ x = 72
The numbers of plastic boxes = 2x = 144
If the number of plastic boxes is increased by 25%,
Hence, the number of plastic boxes = 144 × (5/4) = 180