If three fire-fighters can clear 240 metres of a fire trail in two days, how many metres of fire trail can be cleared by four fire-fighters in three days, working at the same rate?

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If three fire-fighters can clear 240 metres of a fire trail in two days, how many metres of fire trail can be cleared by four fire-fighters in three days, working at the same rate?

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Answer 1 · 2018-06-25T20:17:59

$480 meters$ $color(blue)(480" meters")$

Explanation:

If $3$ $3$ firefighters can clear $240$ $240$ meters in 2 days;
$\Rightarrow 3$ $rArr 3$ firefighters can clear $240 \div 2 = 120$ $240div2=120$ meters in 1 day;
$\Rightarrow 1$ $rArr 1$ firefighter can clear $120 \div 3 = 40$ $120div 3=40$ meters in 1 day.

$\Rightarrow 4$ $rArr 4$ firefighters can clear $40 \times 4 = 160$ $40xx4=160$ meters in 1 day;
$\Rightarrow 4$ $rArr 4$ firefighters can clear $160 \times 3 = 480$ $160xx3=480$ meters in 3 days.

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If three fire-fighters can clear 240 metres of a fire trail in two days, how many metres of fire trail can be cleared by four fire-fighters in three days, working at the same rate?

1 Answer

Explanation:

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