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
Answers were Sorted based on User's Feedback
Answer / mv jaysheelan
(30Men x 20days x 9hrs)/(40Men) = 135 hrs per day. Which
is impossible. So, the answer is none.
Since the question is vague, if you don't answer this
question you may be given mark for this question.
The question should have been
1. How many days 40 men working 9 hrs a day will take to
complete the work.
Answer: (30Men x 20days x 9hrs)/(40Men x 9 hrs) = 15days
2. How many hours a day should 40 men work for 20days will
take to complete the work.
Answer: (30hrs x 20day x 9hrs)/(40Men x 20days)=6 3/4 hrs
| Is This Answer Correct ? | 122 Yes | 34 No |
Answer / dhanaraj
days is eqaul....
so calculte power and time..
power 30 hour 9
power 40 hour x
40x=30*9
x=270/40
x=6.75
x=6 3/4
| Is This Answer Correct ? | 56 Yes | 11 No |
Answer / 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 ? | 32 Yes | 10 No |
Answer / vidya
In both cases days are same
so
m1*ti=m2*t2
30*9=40*t2
t2=270/40=71/2
| Is This Answer Correct ? | 213 Yes | 192 No |
Answer / suratnarayan tripathi
30*20*9=40*20*x
600*9=800*x
5400=800*x
x=5400/800
x=54/8
x=27/4 Hours
x=6.75 hours
It means
x=7 hour and 15 minutes
| Is This Answer Correct ? | 30 Yes | 19 No |
Answer / sumit sourabh
‎40 men work 6 hours 45 minutes a day for 20 days to complete the job...........
AS WE SEE
(30*20*9)=(40*20*H)
5400=800 * H
H = 6.75 HOURS
I.E; 6 HOURS 45 MINUTES IS THE WORK DONE PER DAY
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / baddy
equation given: 30 x 9 = 40 x X
=> X = 30 x 9 /40
=270/40
= 6.75
= 6 hrs and 45 mins
So,Ans is
6.75 hrs
| Is This Answer Correct ? | 5 Yes | 0 No |
The price of a candy bar is $1.00. The price of a ten pack of the same candy bar is $7.40. The ten pack of candy bars is what percentage cheaper then purchasing ten candy bars individually?
two persons run a race of 100m. the winner won by (110/11)m and one second in time. find the speed of lsoer in met
Raghav marks his product 25% above the cost and then gives a discount of 20%.If the original price is Rs,25000 What is the final price?
Two trains A&B start at opposite points 120km at 60kmph. A fly starting along with train A at 120kmph reaches B then returns back to touch and continue. By the time two trains meet howmuch distance the fly would have travelled?
No of financial emergency announced by president
1,2,3,4,5,6,7,8,9 station. route between any 2 station is there only if the 2 digit nob. is divisible by 3. e.g. route exist between 1 to 2 because 12 is divisible by 3 how many station have routes to 8 either direct or indirect
There are 3 males and 2 females,find the possible no of orders that can be made by making the arrangement as in between two males one women is allowed to sit?
0 Answers Amdocs, Apps Associates,
hi i am neha i want to know that what are the subjects could i prepare for sbi clerical exams some i know i.e reasoning,numerical,g.k,computer but i don't know all subjects so plz help me i will be very grateful to u thanks
If 32+24=100 what no. system is used?
In town of 500 people, 285 read Hindu and 212 read Indian express and 127read Times of India 20 read hindu and times of India and 29 read hindu and Indian express and 35 read times of India and Indian express. 50 read no news paper. Then how many read all the three paper?
16 Answers Cognizant, CTC, CTS,
32 people playing table tennis. how many matches to determine the winner.
Number Series 18,20,22,20,28,20,?
16 Answers IBM, KD, TCS,