If 10 men can complete a piece of work in 30 days how many men are requiredto complete the same job in 25 days?

Answers

Answer 1

Answer: We must assume that all workmen work at the same rate, and keep it up forever.

More men ==> fewer days

so the proportion is: 30/25 = x/10

Cross-multiply the proportion:

300 = 25 x

Divide each side by 25 :

x = 300/25 = 12 men

Related Questions

This is about angles. Please answer someone?
In a biological lab, the cell growth rate of two different organisms is tracked and recorded each week. Given the growth rate, the number of organisms can be determined using the following equations: s(x) = 100 + 23x m(x) = 90(1.2x) Complete the table of values. x 100 + 23x 90(1.2x) 0 1 2 3 4 5 Use the table to determine at approximately which point the number of cells will be the same for each organism. Graph the system of equations, and show the point of intersection. Explain what the points graphed for each line represent. Explain how you can determine the solution to the equation 100 + 23x = 90(1.2x) using the graph from part c. Find the point(s) of intersection, and explain what the intersection represents in the context of the problem.
a row of sprinkler's is to be installed parallel to and 4.5 feet away from the edge of flower bed. each sprinkler waters a region with a 6 foot radius. how far apart should the sprinkler's be placed to water the entire flower bed with the least possible overlap of coverage?
An astronaut who weighs 126 pounds on Earth weighs only 21 pounds onthe moon. How much would a person who weighs 31 pounds on the moon weigh on Earth? Show your work to receive full credit.
Solve this inequality j/4 -8<4

Can someone please help me with this? Please explain

Answers

Do you remember that the circumference of every circle is

Circumference = (pi) times (the circle's diameter) ?

Well, before we get to work on the problem, let's take this big hairy
gigantic complicated formula, and divide each side by (pi):

the circle's diameter = (circumference) / (pi) .

In the problem, you're given the circumference, you're told to use 3.14 for (pi),
and you're asked to find the diameter.

I'm pretty sure that you can handle it from this point.

circumference of the garden (circle): 2 $\pi$ r = 81.64

r = 81.64 / (2x3.14)

diameter = 2 x radius:
d= 2r
d= 2(81.64)/(2x3.14)
d= 81.64/3.14
d= 26

suppose a coin is altered so that the probability of heads coming up is 1/5 what is the probability of tails coming up

Answers

Answer:

4/5 for tails

Step-by-step explanation:

70 ans 20 in simplest fore in ratios

Answers

Assuming that you just made a typo the answer would be 7:2

Both numbers are divisible by 10, and 7 and 2 share no common factors as they are both prime numbers making it the most simplified

What is the formula for V=lwh for h

Answers

remember, you can do anythingn to an equaiton as long as you do it to both sides (except divide by zero)

solve for h
V=lwh
divide both sides by lw
V/(lw)=h
tada

Jillian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side. The area of the smaller lawn is 144 square feet. In the equation(x – 8)2 = 144, x represents the side measure of the original lawn.

What were the dimensions of the original lawn?

4 feet by 4 feet
8 + feet by 8 +
8 feet by 8 +
20 feet by 20 feet

Answers

The answer is 20 feet by 20 feet. Let's solve the equation: (x – 8)^2 = 144. (x - 8)^2 = 12^2. Since a^2 = b^2 is the same as a = b, then (x - 8)^2 = 12^2 can be simplified to: x - 8 = 12. Now, solve for x. x = 8 + 12. x = 20. Therefore, the dimensions of the original lawn were 20 feet by 20 feet.

Answer:

Step-by-step explanation:

20x20

What causal link can be inferred from this statement? As weather conditions change, birds migrate from one region to another for breeding.Weather changes cause birds to breed.
Weather changes cause bird migration.
Migrating birds cause weather changes.
Breeding birds cause weather changes.
Bird breeding causes bird migration.

Answers

Weather changes cause bird migration.

B weather changes cause bird migration

Other Questions

Also need help for this but dont need to much of a explanation

Sally has 15 marbles in a bag. 6 are blue, 3 are red, 4 are yellow and 2 are black. What is the probability that Sally draws a blue marble?

5/9× 8/15 simpllest form

Solve for X.A. 10B. 12C. 15D. 22