A library has a fined charge for the first 3 days and an additional charge for each day thereafter Avanshi paid Rs. 27 for a book kept for seven days if fined charges are Rs. x and thereafter charges are Rs. y per day. Write the linear equation representing the above information.
Solution
Correct Answer: Option A
Charges for the first 3 days = x
Charge of the remaining days = y
No. of days remaining = 7 – 3
= 4
∴total charge for reaming days = 4y
∴total charge for 7 days = x + 4y
∴equation ⇒ x + 4y = 27
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