The distance between Ranchi and Kolkata is 420 km. David took a flight from Bangalore to Ranchi via Kolkata. The distance between Banglore and Kolkata is 400 km. Find the total distance travelled by David in metres. [3 MARKS]

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Solution

Concept: 1 Mark
Steps: 1 Mark
Answer: 1 Mark

1km = 1000m
Distance between Ranchi and Kolkata = 420 km= 420 $\times$ 1000 = 420000m
Distance between Bangalore and Kolkata = 400 km = 400 $\times$ 1000 = 400000m
The total distance travelled by David = 400000 + 420000 = 820000m

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The distance between Ranchi and Kolkata is 420 km. David took a flight from Bangalore to Ranchi via Kolkata. The distance between Banglore and Kolkata is 400 km. Find the total distance travelled by David in metres. [3 MARKS]

Concept: 1 Mark Steps: 1 Mark Answer: 1 Mark 1km = 1000m Distance between Ranchi and Kolkata = 420 km= 420 ×1000 = 420000m Distance between Bangalore and Kolkata = 400 km = 400 ×1000 = 400000m The total distance travelled by David = 400000 + 420000 = 820000m

Concept: 1 Mark
Steps: 1 Mark
Answer: 1 Mark

1km = 1000m
Distance between Ranchi and Kolkata = 420 km= 420 $\times$ 1000 = 420000m
Distance between Bangalore and Kolkata = 400 km = 400 $\times$ 1000 = 400000m
The total distance travelled by David = 400000 + 420000 = 820000m