Time and Work Practice Test 3 with solutions

Question : 13 of 40

Marks: +1, -0

A computer can perform 60 identical tasks in 6 hours. At the same pace how many computers are required to perform 90 identical tasks in 3 hours.

2 computers
4 computers
5 computers
3 computers
6 computers

Validate

Solution:

Number of computers required to do 60 tasks in 6 hours = 1 computer
Number of computers required to do 60 tasks in 3 hours by = 2 computers
Number of computers required to do 90 tasks in 3 hours =

{2×90}/{60}

= 3 computers

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