Question

renu bought 28 articles for INR 1540. She sold them at a profit equal to the selling price of 6 articles. How many articles did she sell for INR 840​

Answer 1

Answer:

12

Step-by-step explanation:

profit=s.p-c.p

s.p of 6 articles=s.p of 28 articles -c.p of 28 articles

cp of 28 articles=s.p of 22 articles

one article sold at 1540/22=70

then

1 article sold at 70 then ? sold at 840

840/70=12

Answer 2

Answer:

Step-by-step explanation:

Here, CP of 28 articles = 1540

Let SP of each article = x

Therefore, SP = 1540 + 6x

But, SP = 28x

Therefore,

28x = 1540 + 6x

22x = 1540

x = 70

Which implies that, SP of each article is 70

To get number of articles per 840, divide 840 by 70(Since SP of each article is 70)

840/70 gives 12.

So, she sold 12 articles for 840