Math, asked by videshkumar7488, 9 months ago

(ii) एक दुकानदार 80 रु० में कुछ किताबें खरीदता है । यदि किताब का मुल्य 1 रु० का
वह उसी राशि में चार किताबें अधिक खरीद लिया होता ।​

Answers

Answered by tanujyadav28
0

Answer:

Let no of books = x

\frac{60}{x} - \frac{60}{x + 5} = 1

x + 5 - x \div {x}^{2} + 5x \: = 1 \div 60

300 =

{x}^{2} \: + 5x

{x}^{2} + 5x - 300 = 0

(x+15)(x-20) =0

x=20 or -15

no of books =20

Step-by-step explanation:

Mark as brainlist

Similar questions