This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Let the marked price be M.
discount = 20%
Price = 1600

M= \frac{Price}{100-discount}  \times 100= \frac{1600}{100-20}  \times 100= \frac{1600}{80} \times 100=Rs.\ 2000

The marked price is Rs. 2000
2 4 2
Say the marked price was M_p
He was given off 20%, so 80% was what he paid. So:

\frac{4}5M_p=1600 \\\\ M_p=5\times\frac{1600}4 \\\\ M_p=\frac{5\times1600}4\\\\ \therefore M_p=400\times5\\=2000

Ans: $2000