The time to complete 15 bricklayers is 3.5 hours
How to calculate time taken?
The ratio of an object's traveled distance to its constant speed is known as the time formula. Time describes how things happen in time. The order of this movement is such that it moves from the past to the present and then into the future.
The first step is to calculate the constant proportionality
t ∝ 1/n
t = k/n
Where t = time, K= constant and n = number of people
t = k/n
k =tn
= 5×7 = 35
∴t = 35/n
for n = 10,
t = 35/10
t = 3.5 hours.
To learn more about calculating time taken from the given link
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