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Question

The taxi fare in a city is as follows: For the first kilometre, the fare is Rs. 8 and the subsequent distance it is Rs. 5 per km. Taking the distance covered as x km and fare as Rs y, write a linear equation.

A
y=4+6x
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B
y=3+5x
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C
y=4+5x
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D
y=3+6x
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Solution

The correct option is D (y=3+5x)

Since, for the first 1,km fare=8
and further subsequent distance it is Rs.5 per km.
To find fare(y) for x km: first 1 km, we have to subtract from x,
So
(x1)km, it cost Rs.5 per each km.
So, Fare=(x1)5
Now we can add 1km fare separately as follow:
Thus, total fare, y=5(x1)+8=5x5+8=3+5x


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