Question

A box p has 1000 items of which 100 are defective. another box q has 500 items of which 30 are defective. the items of both boxes are mixed

Answer 1

Now,

The box A has 1000 items in which 100 are defective

And

Box B has 500 items out of which 30 are defective

So,

If the contents of the Box A and Box B are mixed then it will have a total of

(1000 + 500) = 1500 items

Out of which

(100 + 30) = 130 items

which will be defective

So,

It will be total of 1500 items out of which 130 items will be defective

Answer 2

This question is incomplete, but I will choose the most rational way to answer it.

Box P

This box has 1000 items, out of which 100 are defective and 900 are proper.

Box Q

This box has 500 items, out of which 30 are defective and 470 are proper.

When the items of both boxes are mixed, there will be a total of 1500 items, out of which 130 will be defective and 1370 will be proper.

The percentage of defective items will be 8.66% while the percentage of proper items will stand at 91.34%.