Question

A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Aarushi paid Rs 27 for a book kept for seven days.if fixed charges are Rs x and per day charges are Rs y. Write the linear equation representing the above data

Answer 1

Fixed charges=X
per day charges=y
Aurushi paid 27rs for 4 days
Linear equation=x+4y=27

Answer 2

fixed charge and additional charge be x and y
then the linear equation will be
X+ 4Y = 27