Question

12 men complete a work in 9 days. After they
have worked for 6 days, 6 more men join
them. How many days will they take to
complete the remaining work?
(a) 2 days
(b) 3 days
(c) 4 days
(d) 5 days
(e) None of these
​

Answer 1

Answer:

(a) 2 days

Step-by-step explanation:

In 1 day, 12 men will complete 1/9 of work.

In 6 days 12 men will complete 6/9=2/3 of work.

So,

after 6 days the work left is 1/3.

°•° 12 men will complete the 1/3 work in 3 days

So,

1 man will complete 1/3 of the work in 36 days.

18 men (12+6) will complete the remaining work in

36/18= 2 days is the answer.

Hope this helps you.

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Answer 2

Answer:

2 days

Step-by-step explanation:

12 men worked for 9 days = 12×9 = 108

after working for 6 days = 12×6 = 72

days left = 108 - 72 = 36

6 men more joined = 12+6 =18

so, no. of days taken to complete the remaining work = 36/18 = 2 days

hope this will help u.