Question

On selling 80 articles for rs 140 a person incurred a loss of 30%. How many articles he should sell for rs 104 to earn the profit of 30%

Answer 1

32 CP of 80 balls pens = Rs. 200

CP of 1 ball pens = 20080 = Rs. 2.5

to gain 30% SP of 1 ball pen = 2.5+30100×3.25

Ball pens he sale in Rs. 104 = 3.25

= 32 Pens

Answer 2

Answer:

SP of one article = 140/80 = 7/4;

as per question 30 loss is incurred , so CP = (7/4) / (7/10) =  5/2;

Just to earn 30% profit  SP must be=  CP * 1.3= 5/2 * 1.3 =3.25;

so no. of articles to sold = 140/3.25 = 32;