A library has a fixed charge for the first 3 days and additional charge for each day thereafter. Saritha Paid Rs 27/- for a book kept for 7 days, while Susy paid Rs 21/- for a book she kept for 5 days. Find the fixed charge and charge for each additional day?
Негізгі бет Class Xth / Chapter Linear Pair Eqn / CBSE / Ex 3 3 Q2 -(v)
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