Question

the taxi fare after each km when the fare is ₹15 for the first km and ₹8 for each additional km​

Answer 1

Answer:

LCM of 15 31 39 8 =8 is the additional killometer

Answer 2

Answer:-

$\small\sf{Fare\:for\:1\:km,a1=Rs.15}$

$\small\sf{Fare\:for\:2\:km,a2=Rs.(15+8)=Rs.23}$

$\small\sf{Fare\:for\:3\:km,a3=Rs.(23+8)=Rs.31}$

$\small\sf{Fare\:for\:4\:km,a4=Rs.(31+8)=Rs.39}$

━━━━━━━━━━━━━━━

$\small\sf{a2-a1=23-15=8}$

$\small\sf{a3-a2=31-23=8}$

$\small\sf{a4-a3=39-31=8}$

━━━━━━━━━━━━━━━

The difference between the successive terms are the same.

Hence, it is an AP.