Question

if the selling price of 20 articles is equal to the cost price of 23 articles.find the loss or gain percent​

Answer 1

Answer:

Step-by-step explanation:

Let the selling price of 20 articles = x.

Now, Selling price of 1 article = x/20

Selling price of 23 articles = 23x/20 .

Also, it is given that Cost price of 23 articles = x.

C. P < S.P .

Hence, there is a gain in the transaction .

Gain = 23x/20 - x = 3x/20 .

Gain % = 3x/20 /x *100 = 3/20 *100 = 15%

Answer 2

ANSWER

Let r% p.a. be the rate under installment scheme. After Rs 600 cash is paid, Rs 1200 remained to be paid.

This becomes Rs 1,220. Total interest paid is Rs 20.

Now Rs 1,200 is kept for one month and Rs 600 is kept for one month.

⇒ Rs 600 is kept for 3 months at r% and interest paid is Rs 20.

$\therefore 20 = 600 \times \frac{3}{12} \times \frac{r}{100}$

$= > r = \frac{40}{3} = 13.33\%$