Superman flies at a speed of $2.6 \times 10^{7}$ m/s . If the speed of a jet is 130000 m/s, then Superman's speed is times the speed of the jet.

200

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2000

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240

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2400

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Solution

The correct option is A 200
$\frac{Speed of Superman}{Speed of jet} = \frac{2.6 \times 10^{7}}{130000}$
$= \frac{2.6 \times 10^{7}}{1.3 \times 10^{5}}$
$= \frac{2.6}{1.3} \times 10^{2}$
$= 2 \times 10^{2} = 200$
(Using $∵ \frac{a^{m}}{a^{n}} = a^{m - n}$ )
Thus, the speed of Superman is 200 times that of the jet.

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Superman flies at a speed of 2.6×107 m/s . If the speed of a jet is 130000 m/s, then Superman's speed is times the speed of the jet.

The correct option is A 200Speed of SupermanSpeed of jet=2.6×107130000 =2.6×1071.3×105 =2.61.3×102 =2×102=200 (Using ∵aman=am−n) Thus, the speed of Superman is 200 times that of the jet.

Superman flies at a speed of $2.6 \times 10^{7}$ m/s . If the speed of a jet is 130000 m/s, then Superman's speed is times the speed of the jet.