A three-wheeler scooter charges Rs 15 for first kilometer and Rs 8 each for every subsequent kilometer.
Question:

A three-wheeler scooter charges Rs 15 for first kilometer and Rs 8 each for every subsequent kilometer. For a distance of x km, an amount of Rs y is paid. Write the linear equation representing the above information. 

Solution:

Total fare of Rs y for covering the distance of x km is given by y = 15 + 8(x – 1)

y = 15 + 8x – 8

y = 8x + 7

Where, Rs y is the total fare (x – 1) is taken as the cost of first kilometer is already given Rs 15 and 1 has to subtracted from the total distance travelled to deduct the cost of first Kilometer. 

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