Question

the owner of a taxi company decided to run all the taxi on CNG fuel instead of Petrol diesel . The taxi charge in city comprist of fixed charge to gether with the change for the distance covered for a journey of 12km the change paid Rs 89and for the journey of 20km the charge paid Rs 145 (i) What will a person have to pay for traveling a distance of 30 km (ii) Why did he decided to use CNG for his taxi as fuel

Answer 1

Answer: The final answer is Rs 215 as ..

Step-by-step explanation:

Let the fixed charge be Rs x and

The charges for per km be Rs y

Therefore

x + 12 y = 89 ......... eqn 1

And

x + 20 y = 145 ........eqn 2

1 - 2

x + 12 y - x - 20 y = 89 - 145

8 y = 56

y = 7

Therefore x + 20 (7) = 145

x + 140 = 145

x = 5

Now , for 30 km

x + 30 y = 5 + 30 * 7

= 5 + 210

= 215

ii CNG IS A POLLUTION FREE gas so to make the environment pollution free

Answer 2

Answer:

Step-by-step explanation:

Let fixed charge be x

and other charge for km be y

so here given that

for 13km Rs 129

x+13y=129.......(1)

and for 22 km Rs 210.

x+22y=210..... (2)

subtracting eq. 1 from 2

x+13y=129

x+22y=210

-9y=-81

y=9

x=12

for 32 km

x+32y=12+32(9)

=300

!!) CNG is a pollution free gas