10 men working for 6 days can complete 5 copies of a book if there are 8 men working to complete 4 copies of the book how many d
2 answers:
Answer:
The number of days required for 8 men working to complete 4 copies of the books is 6 days
Step-by-step explanation:
Given As
The number of men (M1) = 10
The number of working days (D1) = 6 days
The work done (W1) = 5 copies
Again,
The number of men (M2) = 8
The number of working days (D2) = D2 days
The work done (W2) = 4 copies
∵ = constant
So ,
or,
Or, =
Or, D2 =
∴ D2 = 6 days
Hence The number of days required for 8 men working to complete 4 copies of the books is 6 days Answer
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Answer:
6.2
Step-by-step explanation:
Although there's multiple ways to solve this problem, my method will be to simply find the area for the full triangle (the empty + orange triangles) and subtract the area of the smaller, empty triangle.
Now, you that area for a triangle is 1/2*base*height.
To find the measurements for the full triangle, you must add up the bases for the two smaller triangles:
Height is the same for both triangles so Height total = 4 ft.
Now the total area can be calculated:
Area total= 1/2* base_total * height_total
Area total = 1/2 * 5ft * 4 ft
Area total = 20 / 2 = 10 ft squared
Lastly, subtract the area of the empty triangle from the total triangle to find the orange triangle.
Area Empty Triangle = 1/2 * base_empty * height_empty
Area Empty Triangle = 1/2 * 1.9ft * 4 ft = 7.6 ft / 2 = 3.8 ft squared
Area total - Area empty = 10ft^2 - 3.8ft^2 = 6.2 ft squared