Question

the selling price of 12 pens is equal to the cost price of 14 pens find the gain percent​

Answer 1

Answer:

let the C.P of 1article be₹1

then C.P of 14pens be₹14

by given condition

S.P of 12pens =C.p of 14 pens=₹14

s.p of 12 pens. =₹14

s.p of1pen=₹14÷12

gain= s p of 1pen -c.p of 1 pen

₹(14/12-1)=₹2/12 =₹1/6

gain percent =gain/c.p×100

1/6×100

50/3percent

Answer 2

Answer:

Cp of per pens =12x

Sp of per pens=14Y

12x=100

x=100/12=25/3=8.33

x=8.33

Now, 14Y= 100

Y=100/14=7/50=7.14

Loss=cp- sp

8.33-7.14=1.19

Loss%=1.9×100/8.33=27.7