Question

the selling price of 12 pens is equal to the cost of 15 pens. find the gain percent​

Answer 1

Answer:

Let the cost price of 1 pen = ₹ 1

So, cost price of 12 pens = ₹ 12

SP of 15 pens = ₹ 15

From the question,

Selling price of 12 pens = cost price of 15 pens

Gain = SP – CP

= 15 -12

= ₹ 3

Gain % = {(gain/CP) × 100}

= {(3/12) × 100}

= {300/12}

= 25%

Step-by-step explanation:

Here Is Ur Answer!

Answer 2

• ʟᴇᴛ ᴛʜᴇ ᴄ.ᴘ. ᴏғ 1 ᴘᴇɴ =ʀᴇ. 1

∴ ᴄ.ᴘ ᴏғ 12 ᴘᴇɴs=ʀs. 12×1

=ʀs. 12

ʜᴇɴᴄᴇ, ɢɪᴠᴇɴ

ᴄ.ᴘ. ᴏғ 12 ᴘᴇɴs = s.ᴘ ᴏғ 16 ᴘᴇɴs

∴ s.ᴘ ᴏғ 16 ᴘᴇɴs=ʀs. 12

∴ ᴄ.ᴘ ᴏғ 16 ᴘᴇɴs=ʀs. 16

∴ ʟᴏss=ᴄ.ᴘ−s.ᴘ

=16−12

=4 ʀs.

[tex]Loss %=C.PLoss×100

=164×100

=25%.

Loss %=

C.P

Loss

×100

=

16

4

×100

=25%.