Question

An auto ride costs birr 5 for the first km,birr 4 for the next 3kms and birr 9 for each of the subsequent kms. find the average cost per km for 10kms.

Answer 1

Answer:

Step-by-step explanation:

Answer 2

The average cost per km for 10 km is birr 6.4

GIVEN

An auto ride costs birr 5 for the first km,birr 4 for the next 3kms and birr 9 for each of the subsequent kms.

TO FIND

The average cost per km for 10kms

SOLUTION

We can simply solve the above problem as follows;

Cost for first kilometer = birr 5

Cost for next 3 kilometer = birr 4

Distance left = 10-(1+3) = 10 - 4 = 6 km

Cost for each of subsequent kilometer = birr 9

Cost for remaining 6 km = 9 × 6 = birr 54

Average Cost of auto ride = Total cost/total kilometer.

= 54+6+4/10

= 64/10

= 6.4

Hence, The average cost per km for 10 km is birr 6.4

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