solve this no. (ii) and advance thanxx
Share
solve this no. (ii) and advance thanxx
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
Given 2 women + 5 Men can finish a work in 4 days.Then their 1-day work = 1/4.
Given 3 women + 6 men finish it in 3 days.
Then their 1-day work = 1/3.
On solving (1) * 4, & (2) * 3, we get
8W + 20M = 1 ------- (3)
9W + 18M = 1 ----- (4)
On solving (3) * 9, (4) * 8, we get
72W + 180M = 9
72W + 144M = 8
-------------------------------
36M = 1
M = 1/36.
Therefore men alone can do 1/36th of the work in 1-day.
Therefore 1 men will take 36 days to finish the work.
Substitute M = 1/36 in (3), we get
8W + 20M = 1
8W + 20(1/36) = 1
8W + 20/36 = 1
8W = 1 - 20/36
8W = 16/36
W = 16/36 * 8
W = 16/288
W = 1/18.
Therefore women alone can do 1/18th of the work in 1-day.
Therefore woman will take 18 days to finish the work.
Hope this helps!