A taxi operator charges Rs 80 for the first 4 km and thereafter Rs 15 for each 1 km. The total distance travelled in kilometres is represented as d. Which of these is the correct formula to find the total fare ( f ) when d is greater than 4 km? f = 15 df = 80 + 15 df = 80 + 15 d - 4f = 80 + 15( d - 4)Clear selection
Question
A taxi operator charges Rs 80 for the first 4 km and thereafter Rs 15 for each 1 km. The total distance travelled in kilometres is represented as d. Which of these is the correct formula to find the total fare ( f ) when d is greater than 4 km? f = 15 df = 80 + 15 df = 80 + 15 d - 4f = 80 + 15( d - 4)Clear selection
Solution
The correct formula to find the total fare (f) when the distance (d) is greater than 4 km is: f = 80 + 15( d - 4).
Here's the step by step explanation:
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For the first 4 km, the taxi operator charges Rs 80. This is a fixed cost.
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For each km after the first 4 km, the taxi operator charges Rs 15.
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Therefore, if the total distance travelled (d) is greater than 4 km, you would subtract 4 from d to find out how many km are charged at the Rs 15 rate.
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You would then multiply this number by 15 (the cost per km after the first 4 km) and add 80 (the cost for the first 4 km) to find the total fare.
So, the formula is: f = 80 + 15( d - 4).
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