Question

Ravish bought 100 articles for rs 4000.he sold 20 of them at a gain of 5% . At what gain percent must he sell the remaining articles so as to gain 20% on the whole? ​

Answer 1

Answer:

CP of 1 article =4000/100 = Rs 40

he sells 20 articles at a gain of 5%

So,

selling price of those 20 articles =

40*20 + 40*20*5/100

=800+40

= Rs 840

on the whole he wants he wants 20% profit

which means of profit he wants =20/100

*4000

= Rs 800

CP of 80 articles = 80*40 = Rs 3200

from Rs 800 he already got profit of Rs 40 Which means he has to get More Rs 760

P% = P/CP* 100

=(760/3200)* 100

= 23.75%

Step-by-step explanation:

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