Four persons have to cross the bridge they are having one torch light. Four persons take 1,2,5,10 minutes respectively, when two persons are going the will take the time of the slowest person what is the time taken to cross all of them.	Choose the correct choice from the following:
A) 17 min
B) 18 min
C) 19 min
D) 16 min
E) 15 min
Let 17 min takes 1 min, B takes 2 min, C takes 5 min, D takes 10 min   First 17 min &amp; B goes=&gt; 2 min   17 min returns=&gt; 1 min   C &amp; D goes=&gt;10 min   B returns=&gt;2 min   17 min &amp; B goes=&gt;2 min   Taotal time=2+1+10+2+2= 
<gadget id="calculator">2+1+10+2+2</gadget>
<output>17</output>
17min   Therefore, 17 min is the minimum time   17 minNSWER:17 min
<result>A</result>
Four persons have to cross the bridge they are having one torch light. Four persons take 1,2,5,10 minutes respectively, when two persons are going the will take the time of the slowest person what is the time taken to cross all of them.