Answer : Option D

Explanation :

ATQ,

A shopkeeper purchases an article at the rate of 2 for rupees 3, and again purchase twice of the quantity at the rate of 3 for rupees 2 and the selling price of the all articles is 6 for rupees 7.

Here, the total articles are purchased in 2 times.

i.e.,     Article     price

C.P 1 =     2      3

C.P 2 =     3      2

But the shopkeeper purchases double articles the second time.
That means C.P 2 = 2 * C.P 1
So we should make the C.P 2 article's cost price as double as C.P 1

To satisfy the condition, we need to multiply the C.P 1 with 3 and C.P 2 with 4. The change made in Articles should also be performed at their price to calculate the % profit or loss.

i.e.,            Article              price

C.P 1 =      3* 2 = 6         3* 3 = 9

C.P 2 =      4* 3 = 12       4* 2 = 8

Now, we can see that C.P 2's article = 2 * C.P 1's article
Now, total article purchased by shopkeeper C.P = C.P 1 + C.P 2 = 18 at rupees 17

i.e.,      Article      price

C.P =       18       17

S.P =       6         7

Note: the article should always be equal in S.P and C.P.

To make it equal, multiply S.P with 3 and the change should also be made in the price.

i.e.,         Article      price

C.P =       18           17

S.P =      3*6=18    3* 7 = 21

The difference between the price of C.P and S.P is 21-17 = 4
Now, apply % formula.

Profit or Loss % = ((difference between C.P and S.P)/ C.P) * 100
Here C.P = 17, and S.P = 21. Selling price is more than cost price.
So, Profit % = (4/17) * 100 = 23.52%