Question

45 people in a certain company can work together to finish a project in 15 days. For a project of the same workload, the company decided to use 15 people. Assume all people have the same level of productivity.
In how many days can this project be completed?

Answer 1

ANSWER : 5

Explanation : if 45 people working in any project taje 15 days so it means that 15÷45=3, means they are working a project in 3 days . If 15 peoples are doing the work in ___ , means 15÷3=5 , 15 people are completing the project in 5 days ans

Answer 2

Given :- 45 people in a certain company can work together to finish a project in 15 days. For a project of the same workload, the company decided to use 15 people.

To Find :- In how many days can this project be completed ?

Solution :-

from given data we have,

→ 45 people can finish a project in = 15 days.

So,

→ 1 people will finish the same project in = (15 * 45) days

then,

→ 15 people will finish the same project in = (15 * 45)/15 = 45 days (Ans.)

Hence, the project can be completed in 45 days .

Shortcut :-

given that,

→ M1 = 45 people

→ D1 = 15 days

→ M2 = 15 people

So,

→ M1 * D1 = M2 * D2

→ 45 * 15 = 15 * D2

→ D2 = 45 days (Ans.)

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