Question

A shopkeepar sold 20 articles for 80rupees and gained 20 percent how many articles did she buy for 80 rupees
please do step by step explanation on page​

Answer 1

Answer:

Step-by-step explanation:

20 article = 80₹ ; 1 article = 4₹ (selling price)

profit 20%, fraction of 20% is 1/5,

means if cost price 5 unit then selling price will be (5+1 =6 unit)

here, selling price 4₹

so, 6 unit = 4₹ then 5 unit = (4×5)/6 = 20/6=10/3

means cost of 1 article = 10/3₹

we can say , 1₹ = 3/10 article

then 80₹ = (3/10)×80=24 article

he bought 24 article for 80₹