Ans: if bought a tv set for 20000 he sold his old stock for 21000 SP-CP = 21000-20000 if they profit

Verified answer

Answer:

cost at which tv is bought =₹20000

revised cost at which it is sold=₹21000

profit =₹21000 -₹20000 =1000

1000÷100=10%

hence the profit percentage is 10%

Step-by-step explanation:

if it is helpful plz mark me as brainlist