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.

First, let us analyze the line graph to find the total number of TVs sold by shop D:

From the blue line representing Total TV sold, the value corresponding to shop D is 760.

Next, we calculate the number of defective TVs sold by shop D:
It is given that 12.5% of the TVs sold by D are defective.
$\text{Defective TVs sold by D}=12.5\%\text{of}760$

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

We are given that the total number of defective items (cell phones + TVs) sold by D is 280.

Therefore, we can find the number of defective cell phones sold by shop D by subtracting the defective TVs from the total defective items:
$\text{Defective cell phones sold by D}=\text{Total defective items}-\text{Defective TVs}$

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

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