Question

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A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km? [1 mile = 1.6 km]

A. 0.3

B. 0.8

C. 2.5

D. 3.2

Answer 1

Answer: The car would need 0.3 gallons of fuel to travel 20km.

Step-by-step explanation: 40mile x 1.6km = 64km

1 gallon 1 mile 1 gallon

20km ÷ 64km = 0.3125

Answer 2

In 0.3 gallon of fuel, the car will travel 20 km.

A is the correct option.

Explanation:

We have been given that in 1 gallon of fuel the car can travel 40 miles.

Now, 1 mile = 1.6 km.

Hence, in 1 gallon the car travel 40×1.6 = 64 km

Let the car will consume x gallons of fuel to travel 20 km.

Thus, we have the equation

`(1)/(64)=(x)/(20)`

ON solving for x

`x=(20)/(64)\\\\x=0.3`

Therefore, in 0.3 gallon of fuel, the car will travel 20 km.

A is the correct option.