Nikhil Patel

CAT Preparation Community 4y ago

If 30 men were hired to complete a job in a fixed time. After 40 percent of time elapsed, they could finish only one-third of the work. Due to some reason, the job has to be completed in two-third of the original time. At least, how many more men should be hired to finish the job within this time?

6

Kartikay Karnwal 4y ago

20

Kartikay Karnwal 4y ago

m sorry now i am describing the way ie. fix the time to be 30 minutes, let the work to be done is 30*30 =900 so, 30*.4 =12 minutes 1/3 of the work ie 300 units are completed remaining 600 unit are to be now finished in 8 minutes (2/3 of original time -12 minutes) therefore 600/8=50 as one unit is done by a person in one minute so 50-30 men = 20

Suryansh Shrivastava 4y ago

Your method is right but answer is wrong 600/8 is 75 not 50 So additional men required will be 75-30 which is 45

Mani Theagarajan 4y ago

I got 60 as the answer?

sai 4y ago

yeah, i also got 60.

Suryansh Shrivastava 4y ago

My answer is 45 Can you provide your solution so that I can cross check

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