Question

Fare of a Taxi costs ₹ 30 for the first km and increase by 12 for each additional km. What will be the charge after traveling of 50km
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Answer 1

Step-by-step explanation:

option A= 1800,B= 615, C= 618, D= 600

Answer 2

Given :    Fare of a Taxi costs ₹ 30 for the first km and increase by 12 for each additional km.  

To Find : charge after traveling of 50km

Solution:

This forms an AP

with firs term a = 30

common difference d = 12

number of terms n = 50

Sum on n terms   =  (n/2)(2a  + (n-1)d)

= (50/2)(2 * 30 + (50 - 1)12)

= 25 ( 60 + 588)

= 25 ( 648)

= 16200

charge after traveling of 50km = Rs 16200

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