Kanul spent $5000 in buying raw materials, $200 in buying machinery and 30% of the total amount he had as cash with him. What was the total amount?  Select the correct option.
A) $ 7456.00 B) $ 7500.55 C) $ 7428.57 D) $ 7852.56 E) $ 7864.00

Rationale: "let the total amount be x then , ( 100 - 20 ) % of x = 5000 + 200 70 % of x = 5200 70 x / 100 = 5200 x = $ 52000 / 7 x = $ 7428.57 answer is c"
Answer: C