2 men and 7 boys can do a piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. Then, 8 men and 6 boys can do three times the amount of this work in	Choose the correct answer:
A) 05  B) 21  C) 51  D) 11  E) 41
(2x14)men+(7x14)boys=(3x11)men+(8x11)boys   5 men= 10 boys 1man= 2 boys   Therefore (2 men+ 7 boys) = (2 x 2 +7) boys = 11 boys   ( 8 men + 6 boys) = (8 x 2 +6) boys = 22 boys.   Let the required number of days be x.   More boys , Less days (Indirect proportion)   More work , More days (Direct proportion)   21oys 22:11 and Work 1:3=:14:x   Therefore, (22x1x)=(11x3x14)   x=462/22= 
<gadget id="calculator">462/22</gadget>
<output>21</output>
21   Hence, the required number of days= 21   Answer is 21.
<result>B</result>
2 men and 7 boys can do a piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. Then, 8 men and 6 boys can do three times the amount of this work in