# 7.3.1. Reading and Interpreting Data

The table below represents the types and the number of televisions produced in a factory from 2012 till 2015. Determine the percentage of the increase of the LED 42 inchs televisions from 2 013 till 2 014.

TV2012201320142015
HD 32 inchs1 8002 3002 4002 900
LED 32 inchs1 3001 3001 3001 300
HD 42 inchs2 3502 1001 9001 800
LED 42 inchs2 6002 5002 7503 050
• A
• B
• C
• D

### Example

The table below represents the types and the number of televisions produced in a factory from 2012 till 2015. Determine the percentage of the increase of the LED 42 inchs televisions from 2 013 till 2 014.

TV2012201320142015
HD 32 inchs1 8002 3002 4002 900
LED 32 inchs1 3001 3001 3001 300
HD 42 inchs2 3502 1001 9001 800
LED 42 inchs2 6002 5002 7503 050

### Solution

In 2013, LED 42-inch televisions were sold.

In 2014, LED 42-inch televisions were sold.

Subtracting from ,

So, the number of LED 42-inch televisions increased by 250 from 2013 to 2014.

To find the percentage,

Therefore, the percentage of increase from 2013 to 2014 is .

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