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Question

An autorickshaw charges Rs. 10 for the first kilometre then Rs. 8 for each such subsequent Kilometre. The total charge (in Rs) for d kilometres is


A
10 + (d - 1)8
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B
8 + (d - 1)10
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C
10 + (d)8
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D
(d - 1)8
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Solution

The correct option is A 10 + (d - 1)8
Total distance covered by autorickshaw is d km.
For the first kilometre Rs. 10 is charged.
So, for the remaining (d - 1) km autorickshaw charges Rs. 8 per kilometre.
For the rest (d - 1) km autorickshaw charges (d - 1)×8.

So, the total charge is Rs. 10 + (d - 1)8.


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