Question

if the cost price of 10 greeting cards is equal to the selling price of 8 greeting cards find its gain or loss

Answer 1

Let C.P of 10 greeting cards = 10x .

C. P of one greeting card = x.

Now, C. P of 8 greeting cards, 8x .

Also S. P of 8 Greeting cards = 10x .

Now, Gain = 2x .

Gain % = 2x/8x * 100 = 25%

Answer 2

Given :-

Let the cost price of each card be x

Then, CP of 8 cards = 8x.

SP of 8 cards = CP of 10 cards = 10x.

Thus, CP = R 8x and SP = 10x.

→ Since ( SP ) > ( CP ), there is a gain.

→ Gain = ₹ ( 10x - 8x ) = 2x.

→ Gain% = ( Gain / CP × 100 ) %

= ( 2x / 8x × 100 )% = 25%

hope it works❤