Answer:
7000
Explanation:
70/100 * marked price = original price - 100 
marked price = 140/100* og price 
70/100 * 140/100 * og price = original price - 100 
49/50 * og price = orignal price - 100
1/50 of original price = 100 
orignal price = 5000 
marked price = 140/100 * 5000 = 7000