The sum of 7 km 5 m, 8 m 6 cm, and 4 m 9 mm is:

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7017.067 m

7017.068 m

7017.069 m

7017.066 m

answer is C.

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Detailed Solution

Concept: Distance is measured in the aforementioned units. The first step is to convert the units in the question, such as km, m, cm, or mm, into one unit. All units in m are being converted. a number of conversions into m. 1km = 1000m, 1m = 100cm, and 1cm = 10mm are all known units. Convert all the units to m utilizing these conversions.
All units are used to measure distance. In order to add, we will first combine all the units into a single unit. The units will be changed into m. We've represented the conversions as follows:
1km=1000m , 1m=100cm and 1cm=10mm
${"mathml":"<math class="image_resized" style="width:214px;height:792px"><span style="font-family:$ Hence, the correct answer is option 3.

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