Question

c.p of 10 articles = sp of a article find gain or loss%​

Answer 1

Let the CP of 1 article be $1

so CP of 10 articles=$10

CP of 10 articles =SP of 1 article

So SP of 10 articles=$10×10

=$100

now CP of 10 articles < SP of 10 articles

=GAIN

GAIN%=GAIN/CP×100

=100-10/10×100

=900%