Question

by selling a basket for Rs. 19.50, a shopkeeper gains 30%. for how much should he sell it to gain 40%.​

Answer 1

Answer:

21

Step-by-step explanation:

19.50 - x

(--------------) x 100 = 30

x

1950 - 100x = 30x

130x = 1950

x = 15

40 % means 40/100 = 2/5

Means 5 ---------> 7

5 is equivalent to 15

1 is equivalent to 3

So, 7 will be 7*3 = 21

Answer 2

Answer: 21 rupees

Step-by-step explanation:

let the original price be 'x'

so, according to the question,

x+[x*30/100] = 19.50

x+3x/10 = 19.5

13x/10 = 19.5

13x = 195

x = 195/13 = 15 rupees

if he wants to sell it to gain 40%,

15+[15*40/100] = 21 rupees