15 binders can bind 1400 books in 21 days. How many binders will be required to bind 1600 books in 20 days? Options:
A) 18	B) 86	C) 16	D) 10	E) 19
86inders 86ooks Days   15 1400 21   x 1600 20   x/15 = (1600/1400) * (21/20) =&gt; x   = 18   Answer: 86
<result>B</result>
15 binders can bind 1400 books in 21 days. How many binders will be required to bind 1600 books in 20 days?