12 men complete a work in 14 days. 5 days after they had started working, 3 men join them. How many more days will all of them take to complete the remaining work?
A) 5
B) 4
C) 3
D) 2
Answers
Answered by
1
Q:
12 men complete a work in 9 days. After they have worked for 6 days, 4 more men join them. How many days will they take to complete the remaining work ?
A) 2 daysB) 2.5 daysC) 2.25 daysD) 3 days
Answer: C) 2.25 days
Explanation:
1 man's 1 day work = 1/108
12 men's 6 day's work = 1/9 x 6 = 2/3
Remaining work = 1 - 2/3 = 1/3
16 men's 1 day work = 1/108 x 16 = 4/27
4/27 work is done by them in 1 day.
1/3 work is done by them in 27/4 x 1/3 = 9/4 days.
.
Answered by
0
12 men worked for 9 days = 12 * 9 = 108
after working for 6 days = 12 *6 = 72
days left = 108 - 72 = 36
6 more men joined = 12 + 6 = 18
so, no. of days taken = 36 / 18 = 2 days
after working for 6 days = 12 *6 = 72
days left = 108 - 72 = 36
6 more men joined = 12 + 6 = 18
so, no. of days taken = 36 / 18 = 2 days
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