Question

a motorist is pumping gas into his car at the rate 5/12 of a gallon everyday 1/24 of a minute.at this rate how many gallons of gas will he have pumped into his car 1/2 of minuets

Answer 1

In \frac{1}{2}

2

1

of a minute gas will he have pumped into his car = 5 gallon.

Given:

A motorist is pumping gas into his car at a rate of 5/12 of a gallon every

\frac{1}{24}

24

1

of a minute.

To find:

At this rate, how many gallons of gas will he have pumped into his car in

\frac{1}{2}

2

1

of a minute?

Explanation:

1 minute = 60 second.

So, \frac{1}{24}

24

1

of a minute = \frac{1}{24}

24

1

× 60 = 2.5 sec.

\frac{1}{2}

2

1

of a minute = \frac{1}{2}

2

1

× 60 = 30 sec.

For 2.5 sec 5/12 of a gallon

For 30 sec = "x" of a gallon

Cross multiplication,

2.5 × x = 30 ×\frac{5}{12}

12

5

x = 5 gallon.

In \frac{1}{2}

2

1

of a minute gas will he have pumped into his car = 5 gallon.

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