Question

on selling a mobile for 750 a Shop keeper loses 10%. for what amount should he sell it to gain 5%​

Answer 1

Step-by-step explanation:

SP =Rs. 750  Let CP =x 

Loss %=10

Loss %=CpCp−Sp×100

10=xx−Sp×100

⇒10x=x−750

⇒750=109x

so, x=9750×10=833.34 Rs.

Let the new Sp be y Gain %=5

Gain %=CpSp−Cp×100

5=833.34(y−833.34)×100

So y=875 Rs.

Answer 2

sp = 750

loss= 10%

cp =100/100-L% x sp

=100/100-10% x 750

100/90 x 750

833.34

gain =5%

sp =100+5/ x833

=875(ans)