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Yuliya22 [10]
3 years ago
12

During a Journey,a car travels at an average speed of 53 km/h for the first hour and at an average speed of 49 km/h for the next

two hours. fine the distance of the whole journey.
Mathematics
1 answer:
Helen [10]3 years ago
4 0
3 hours it does not matter your speed
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Step-by-step explanation:

Given :

No. of parts made by machine A in 10 minutes = 7

No. of parts made by machine A in 10*6 minutes (1 hour) = 7 * 6 = 42 parts

No. of parts made by machine A in 12 hours as

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No. of parts made by machine A in 15*4 =60 minutes (1 hour) = 17 * 4= 68 parts

No. of parts made by machine B in 10 hours as

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There fore total no. of parts made by

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