TEAS Math Problem Solving Practice Test 1

Question : 1 of 40

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Given that one Tunnel Boring machine could build

1,000 {\m}

of tunnel a month and the Tunnel is

50 {\km}

long, how fast could the Tunnel have been built using two Tunnel Boring machines if there had been no delays?

Solution:

In one month,

2,000 {\m}

2 {\km}

of tunnel could be built with 2 machines.

2 {\km} \/ 1

month

=50 {\km} \/ x

;

2 x=50 ; x=25

months, or just over 2 years.

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