Question

70. 12 men complete a work in 18 days. 6 days after they had started working 4 men joined them. How many days
will all of them take to complete the remaining work?
a. 8 days
b. 12 days
c. 13 days
d. 9 days
e. none
​

Answer 1

Answer:

12 men can do the work in 18 days

1 men can do the work in =18×12{less men will take more time}

total no. of man after joined by 4 men=12+4=16men

now,12 men can finish the work in=18×12÷16=13.5 days{13 day and half day}

So answer in these options is none of these.