Question

if 5% more is gained by selling an article for rupees 350 than by selling it for rupees 340 , then the cost of the article is:​

Answer 1

Step-by-step explanation:

let cost price of article be x rs .

According to question

$350 - 340 = \frac{x \times 5}{100} \\ 10 = \frac{5x}{100} \\ 200 = x$

Answer 2

Answer:

Step-by-step explanation:

CP = ( SP * 100 ) / ( 100 + percentage gain ).

here two cases,

case 1, when selling price is 340 rupees , let gain percentage be x

cp= (340* 100)/ (100+ x).........1

case 2, when selling price is 350 rupees ,let gain percent be x+ 5

(if 5% more is gained by selling an article)

cp=( 350* 100) / (100+ 5+x).........2

from 1 and 2

(340* 100)/ (100+ x)=( 350* 100) / (100+ 5+x)

=34( 105+x)= 35(100+x)

= 3570-3500=x

= 70=x= gain percent

CP = ( SP * 100 ) / ( 100 + percentage gain ).

cp=(340* 100)/ (100+ x)

  = 200 rs