Question

Tushar bought a mobile phone for Rs. 6000. At price he should sell so as to gain 10%..

Answer 1

CP$=6000$Rs.

Gain $\%=10\%$

Gain $\%=\frac{sp-cp}{cp}\times 100$

$\Rightarrow 10=\left(\frac{sp-6000}{6000}\right)\times 100$

$\Rightarrow \frac{6000}{10}=sp-6000$

$\Rightarrow sp=6600$Rs.