The line graph given below shows the total number of TV sold and difference between cell phone and TV sold by five different shops (A, B, C, D and E).

Note – Total cell phones sold by all the shops are more than the total TV sold.
Items = cell phone + TV

If 12.5% of TV sold by D are defective and total items sold by D that are defective is 280. Find the defective cell phones sold by D.

The correct answer is 185.

From the given line graph, we can observe the data for shop D:
Total number of TVs sold by shop D = 760

It is given that 12.5% of the TVs sold by shop D are defective.
We can calculate the number of defective TVs sold by shop D as follows:

$\text{Defective TVs}=12.5\%\times 760$

Since $12.5\%=\frac{1}{8}$:

$\text{Defective TVs}=\frac{1}{8}\times 760=95$

We are given that the total number of defective items (TVs + Cell phones) sold by shop D is 280.
Therefore, the relationship between total defective items, defective TVs, and defective cell phones is:

$\text{Total defective items}=\text{Defective TVs}+\text{Defective cell phones}$

Substituting the known values into the equation:

$280=95+\text{Defective cell phones}$

$\text{Defective cell phones}=280-95=185$

Hence, the total number of defective cell phones sold by shop D is 185.