if 30 men completes a job in 15 days working 9 hrs per
day..how much hours per day should 40 men work ??
a ) 35 b)7 1/2 c)30 d) none
Answer Posted / farhan
convert days in hours so 15*9=135 hours
30 men complete a job in = 135 hours
time for 1 man to complete the same job = 135*30
time for 40 men to do the same job = 135*30/40
so the answer will be 6.75 that is (d) none
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
A thief steals half the total no of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the reaming no of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total no of loaves did the bakery have at the beginning.
There are no of urns &no of balls. If three balls are placed in each urn then 3 balls is left. If 4 balls are placed in each urn then 1 urn is left. What is the total no of balls?
write a program that prompts the user to enter three sides of a triangle and prints whether it is a right triangle or not.
2020201-565656=?
With a 4/5 full tank a vehicle can travel 12 miles, how far can it travel with a 1/3 full tank
cpahlet : shoulder :: ring : ?
There are 1000 junior and 800 senior students in a class. And there are 60 sibling pairs where each pair has 1 junior and 1 senior.1 student is chosen from senior and 1 from junior randomly.What is the probability that the two selected students are from a sibling pair?
What is the angle between the two hands of a clock when time is 8:30
500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row are asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their original positions that the shortest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?
Given 10 alphabets out of which 5 are to be chosen. How many words can be made with atleast one repetition.
Find the value of @@+25-++@16, where @ denotes "square" and + denotes "square root".
A sum of money doubles itself in 4 years at simple interest, in how many years, it would become 7 times of itself?
An array was given and we were required to write a function : int CalculateThirdHighest(int a[ ]) : which calculates the third highest number in the array. While coding in C remember to calculate the length of array using formulae length of array=sizeof(a)/sizeof(int). Because the number of elements of array were not passed as argument. i want a solution in C/C++ language
What are all the java technical questions?
1/8 Is divided by 's' , if 's' is increased by 2 times, what Will be the result.