Question

if the cost price of 10 articles is equal to the selling price of 11 articles find the loss or gain percent

Answer 1

let the c.p be ₹x then
c.o of 11 articles = (11x)
s.p of 11 articles=c.p of 10 articles
since s.p is big then c.p so there is gain
gain = s.p -c.p = ₹(11--10) =1
gain% 1x/11×100

Answer 2

if the cost price of 10 articles is equal to the selling price of 11 articles then,

C.P. of 1 article = C Rs.

S.P. of 1 articles = S Rs.

10C = 11S

1C=11/10S

C.P.>S.P.

LOSS = C.P.-S.P.

= 11/10S-11S

= 99/10S

= 9.9S

Loss = C.P.-S.P.