A lending library has a fixed charge for first three days and an additional charge for each day
thereafter. Radhika paid Rs.30 for a book kept for eight days, while Smitha paid Rs.21 for a book kept
for five days. Find the fixed charge and the charge for each extra day.
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Answer: Fixed charge = Rs.15 , Additional charge = Rs.3
PLZ MARK IT AS THE BRAINLIEST!!!
Step-by-step explanation: