Forty five men can construct a road 210m long in 60 days. What length would be constructed by 72 men in 50 days assuming that all work at the same rate?

280m

Step-by-step explanation:

Work rate would be (210m)/(45people)(60days)=7/90 m/(people)(day)

7/90 m/(people)(day) * 72people * 50days =280m

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

i think c. but don't trust it.

step-by-step explanation: