Question

4 men and 10 boys can do 1/2 part of a work in 20 days, while 6 men and 8 boys can do 1/3 part
of the same work in 9 days. In how many days will 18 men can finish the same work?

(Raipur, 2007)
Ans.
$9 \frac{3}{23} \: days$

​I want step by step explanation

Answer 1

Answer:

9 3/23 days is correct answer

Answer 2

Answer:

4M + 10B = 40% 3D 6M + 8B = 27 18M = 2 (4M + 10B) X4D = 16M + 8B) 27 160M + 400B = 162M + 216 B 184B = 2 M IM / 92B समान रूप से पुरुषों का मान रखें: ) 4M + 10B) X40 14X92B + 10B) x4D 1368B + 106) X40 1378B) 40% 3D 18X92BXD !! 21 378x40701O # 623 21X10 210 !! २३ २३ २३