Question

if the selling price of 14 pen is equal to the cost price of 10 find the gain percent

Answer 1

☆Hello friend☆

Le's CP of 10 pen = Rs 100
CP of 1 pen = 100/10 = Rs 10

SP of 14 pen = Rs 100
SP of 1 pen = Rs 100/14
= Rs 7.14

Loss = Rs (10 -7.14)
= Rs 2.86

Loss %= (2.86/10 ×100)%
= 28.6%

$hope \: it \: helps$

☺☺☺

Answer 2

Answer:

40%

Step-by-step explanation:

Let the CP of 1 pen be rs10

Then,

CP of 14 pens will be 14×10=140

And

CP of 14 pens=SP of 10 pens

Hence..

SP of 10 pens = 140

Then,,

SP of 1 pen=140÷10=14

Gain=SP-CP. → 14 - 10→ Rs 4

Gain%=gain/CP×100

→ 4/10×100 =40%

Your ans. is 40% gain