Question 115(v)

Express of following in standard form:
Express 56 km in m.

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Solution

$56 k m = 56 \times 1000 m [∵ 1 k m = 100 m] = 56000 m$

Standard form :
$56000 m = 56 \times 10^{3} m = 5.6 \times 10^{1} \times 10^{3} m = 5.6 \times 10^{4} m$

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