Question

Mike sold two horses for Rs.18000 each. On one he got a profit of 20% and on. the other he lost 20% Find his total gain or loss.

Answer 1

CP of 1 horses =18000 Rs.

profit%=20%

profit%=$\frac{s{p}_1-cp}{cp}\times 100$

$\to 20=\frac{s{p}_1-18000}{18000}\times 100$

$\Rightarrow 3600=s{p}_1-18000$

$s{p}_1=21600Rs.$

horse%=$\frac{cp-s{p}_2}{cp}\times 100$

$\Rightarrow 20=\frac{18000-s{p}_2}{18000}\times 100$

$\Rightarrow 3600=s{p}_1-18000$

$\Rightarrow s{p}_1=21600Rs.$

horse %=$\frac{cp-s{p}_2}{c{p}_2}\times 100$

$\Rightarrow 20=\frac{18000-s{p}_2}{1800}\times 100$

$\Rightarrow s{p}_2=14400$

$SP=S{P}_1+S{P}_2=360000=CP$ of 2 horses

$\therefore$ No profit or loss.