30 binders can bind 1400 books in 21 days. How many binders will be required to bind 1600 books in 20 days?
Choose the correct choice:  A) 87  B) 18  C) 17  D) 36  E) 10
Binders Books 36ays   30 1400 21   x 1600 20   x/30 = (1600/1400) * (21/20) =&gt; x = 36   Answer:36
<result>D</result>
30 binders can bind 1400 books in 21 days. How many binders will be required to bind 1600 books in 20 days?