Question

9. A discount of 15% on one article is the same as
discount of 20% on a second article. The cost of
the two articles can be​

Answer 1

let the cost of two articles be x and y

15% of x = 20% of y

15/100 × x = 20/ 100 × y

3 / 20 × x = 1 / 5 × y

x/y = 1/5 × 20/3

x/y = 4/3

there fore x and y should be in the ration of 4:3

thank you ..

Answer 2

Answer:

Cost of 1st article can be 4 and cost of 2nd article can be 3.

Step-by-step explanation:

Let x be the price of 1st article. And y be the price of 2nd article.

It is given that:

15% of x = 20% of y

(15/100)* x = (20/100)* y

or

15* x = 20* y ( The denominator 100 on both sides gets cancelled )

or

3*x = 4*y

3/4 = y/x

So if the cost of the 1st article is 4, the cost of the 2nd article is 3/4 * 4, that is, 3

Likewise,

If cost of the 1st article is 8, cost of the 2nd article is 6.

And so on.