Question

Rates for having a manuscript typed at a certain typing service are $5 per page for the first time a page is typed and $3 per page each time a page is revised. If a certain manuscript has 100 pages, of which 40 were revised only once, 10 were revised twice, and the rest required no revisions, what was the total cost of having the manuscript typed?(A) $430

(B) $620
(C) $650
(D) $680
(E) $770

Answer 1

Correct option is (D)

Step-by-step explanation:

Given:

Cost for typing for the first time = $5 per page

Cost of revision = $3 per page each time.

Number of pages in the manuscript = 100

Cost of typing 100 pages for the first time = 100 × 5 = $500

Cost of 40 pages revised once = 40 × 3 = $120

Cost of 10 pages revised twice = 10 × (3 × 2) = $60

Total cost of manuscript = 500 + 120 + 60

= $680