A library has a fixed charge for the first three days and an additional charge for each day thereafter. Arushi paid . 27 for a book kept for 7 days,in fixed charge of . and per day charges are . . What will be the linear equation representing the above information?

Given:Fixed charge taken by the library = . . Charges per day taken by the library = . .We can see that Arushi paid . 27 for 7 days. So, for 3 days the charge is fixed = . and for 4 days, thecharges per day is extra.Charges for additional 4 days taken by the library = . 4. Therefore, the linear equation can be represented as,⇒ + 4 = 27

A library has a fixed charge for the first three days and an additional charge for each day thereafter. Arushi paid . 27 for a book kept for 7 days,in fixed charge of . and per day charges are . . What will be the linear equation representing the above information?

Given:Fixed charge taken by the library = . . Charges per day taken by the library = . .We can see that Arushi paid . 27 for 7 days. So, for 3 days the charge is fixed = . and for 4 days, thecharges per day is extra.Charges for additional 4 days taken by the library = . 4. Therefore, the linear equation can be represented as,⇒ + 4 = 27

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A library has a fixed charge for the first three days and an additional charge for each day thereafter. Arushi paid 𝑅𝑠. 27 for a book kept for 7 days,in fixed charge of 𝑅𝑠. 𝑥 and per day charges are 𝑅𝑠. 𝑦. What will be the linear equation representing the above information?

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𝑥+ 4𝑦 = 27

3𝑥 + 4𝑦 = 27

3𝑥 + 7𝑦 = 27

𝑥+ 7𝑦 = 27

answer is A.

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Detailed Solution

Given:
Fixed charge taken by the library = 𝑅𝑠. 𝑥. Charges per day taken by the library = 𝑅𝑠. 𝑦.
We can see that Arushi paid 𝑅𝑠. 27 for 7 days. So, for 3 days the charge is fixed = 𝑅𝑠. 𝑥 and for 4 days, the
charges per day is extra.
Charges for additional 4 days taken by the library = 𝑅𝑠. 4𝑦. Therefore, the linear equation can be represented as,
⇒ 𝑥 + 4𝑦 = 27

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