Good morning,☕️
Answer:
the fixed charge = Rs 3600
the extra charge per hour = Rs 200
Explanation:
Let x represent the fixed charge
and y represent the extra charge per hour
then we have to solve the following equations system :
x + (17-12)y = 4600
x + (13-12)y = 3800
⇔
x + 5y = 4600 (1)
x + y = 3800 (2)
(1)-(2)⇒ 4y = 4600-3800=800 then 4y=800 then y=200
we replace y by 200 in equation (2) : x = 3800-200 = 3600.
:)