What is the cost of printing 500 pages of a document?

Solution:

We need to find the cost of printing 500 pages.

Statement 1:

The cost of printing for less than or equal to \(200\) pages is $ \(0.5\) per page

• The cost of printing first \(200\) pages =\( 200*0.5 = $ 100\)
• We don’t know the cost prime of rest \(300\) pages.

Hence, statement 1 is not sufficient, we can eliminate the answer options A and D.

Statement 2:

Pages in excess of \(200\) are charged at \($0.3\) per page

• It means after \(200\) pages the cost of printing per page is \($ 0.3\)

o The cost of printing last \(300\) pages = \(300*0.3 = $ 90\)
• We don’t know the cost of the first \(200\) pages.

Hence, statement 2 is not sufficient, we can eliminate answer options B.

Combining both the statements

From statement 1: cost of printing first \(200\) pages = \($ 100\)
From statement 2: Cost of printing last \(300\) pages = \($ 90\)
Now, the cost of printing \(500\) pages = \(100 + 90 = $ 190\)
Hence, the correct answer is Option C.

Note:-

We can also deduce this logically, from statement 1 we can find the cost of 200 pages but we can't find the cost of rest of the pages and from statement 2, we can find the cost of printing after 200 pages but we can't find the cost of first 200 pages. By combining both the statement we are getting the cost of the first 200 pages and the cost of the rest of the pages, Hence both the statements together are sufficient. So, we don't need to find the exact cost of printing.