A tea set was bought for Rs 528 after getting a discount of 12% on its marked price.

Cost price = Rs 528

Rate of discount = $12 \%$

Marked price =?

$\mathrm{SP}=\mathrm{MP}$ - discount

Let the MP be Rs $x$.

Now, $\frac{x-12}{100 \times x}=528$

$\Rightarrow \frac{88 x}{100}=528$

$\Rightarrow 88 x=52800$

$\Rightarrow x=\frac{52800}{88}$

$\Rightarrow x=$ Rs 600

Therefore, the marked price of tea set is Rs 600 .