Mathematics
Medium
Question
If 30 men working 9 h per day can reap a field in 16 days, in how many days, will 36 men reap the field working 8 h per day?
(A) 15
(B) 25
(C) 18
(D) 10
A
15
✓ Official correct answer
B
25
C
18
D
10
Community credibility
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A
15
No member explanations yet for this option.
B
25
No member explanations yet for this option.
C
18
No member explanations yet for this option.
D
10
No member explanations yet for this option.
Explanation
Solution
Let x be the number of days
More men, less days (indirect method)
Less hours, more days (indirect method)
therefore
36 x 8 x x = 30 x 16 x 9
X= 4320/288 = 15 days
Let x be the number of days
More men, less days (indirect method)
Less hours, more days (indirect method)
therefore
36 x 8 x x = 30 x 16 x 9
X= 4320/288 = 15 days