Thirty men take 20 days to complete a job working 9 hours a
day. How many hour a day should 40 men work to complete the job?

(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs

Answer Posted / vishal pitaliya

30*20*9=40*20*x

x= (30*20*9)/(40*20)

x= 27/4

x=6 3/4 hrs answer

Is This Answer Correct ?    31 Yes 10 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

The equivalent compound ratio of 5:6::7:10::6:5

759


Complete the series..2 2 12 12 30 30 ?

758


What is the 8th term in the series 1, 4, 9, 18, 35, 68, . . .

836


A guy shows his friend a girl standing in front of her in a hotel and says that she is the daughter of my granny's only son. How are they two related?

769


Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' present age.

906






Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X?

825


Which of the following does multithreading allow? A. several transactions that require the same program to use one copy of the program. B. many tasks to be allocated to the terminal. C. an audit trail of all files records from all files updated by a particular application

1849


if out of x bulbs y bulbs are broken;the % of non broken bulbs

776


how to create the alarm using sql queries.In the sense i need to make the computer to produce beep sound for each 1 minute.(hint: by chr(7) we can produce the beep sound)

1703


a man covered 28 steps in 30 seconds but he decided to move fast and covered 34 steps in 18 seconds. how many steps are there on the escalator when stationary.

840


HOW + MUCH = POWER Then P + O + W + E + R =

1573


A beats B by 10 meters and B beats C by 15 metres the A beats C by

711


A cylinder is inserted in a sphere d/h = 2/3. Find the surface area of the cylinder ?

984


There are three persons A,B,C .A shots the target 6 times out of 7 shots .B shots 4 out of 5 shots .Then what is the probability of hitting the target twice when 2 persons are selected at random.

976


If f(0)=1 and f(n)= f(n-1)*n, find the value of f(4).

849