Question

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.

Answer 1

Answer: Fixed charge = Rs.15 , Additional charge = Rs.3

PLZ MARK IT AS THE BRAINLIEST!!!

Step-by-step explanation:

Answer 2

Answer:

let the fixed charge be = Rs X

and additional charge be = Rs Y

so,

x + 5y = 30_______(1)

x + 2y = 21 _______(2)

Subtracting equation (2) from (1)

X + 5Y = 30

X + 2Y = 21

(-) (-) (-)

_________

3y = 9

y = 9/3

y = 3

Substitute y = 3 in equation (2)

X + 2Y = 21

X + 2 (3) = 21

X = 21 - 6

X = 15

So, fixed charge = 15

and additional charge = 3