Superman can fly at a speed almost equal to $(2.6 \times 10^{2})$ mi/h. A supersonic jet on the planet Krypton can fly at a maximum speed of $7.3 \times 10^{2}$ km/h. Choose the correct option.

Speed of jet is 314 km/h faster than the speed of Superman.

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Speed of Superman is 314 km/h faster than the speed of jet.

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Both travel at same speed.

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Can't be detemined

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Solution

The correct option is A Speed of jet is 314 km/h faster than the speed of Superman.
Given:

$Speed of Superman = 2.6 \times 10^{2} mi/h$
$= 260 mi/h$
$= 260 \times 1.6 km/h$
$= 416 km/h$

$Speed of the jet = 7.3 \times 10^{2} km/h$
$= 7.3 \times 100$
$= 730 km/h$

$730 km/h$ is greater than $416 km/h$ .

$∴$ The speed of the jet is 314 km/h faster than the speed of Superman.

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