Comprehension Passage
Directions : Answer the questions based on the information given below.
A shopkeeper sells four different items namely A, B, C and D. The cost price of product A is Rs. 320 less than the cost price of product B. The shopkeeper sells product B for Rs. 1020 at a profit of 6.25% . The average cost price of each of the four products is Rs. 720. The average marked price of product B and C is Rs. 1100. The shopkeeper allows a single discount of 15% on product B and gives two successive discounts of 10% and 20% on product C.The shopkeeper gives a single discount of 25% on product D and still earns a profit of 50%. The average discount given by shopkeeper on selling products B, C and D is 220. The shopkeeper marks-up the cost price of product A by 12.5% and allows a single discount of 5.55%
What is the ratio of marked price of product A and cost price of product C respectively ?
1
7 : 11
2
8 : 11
3
9 : 11
4
10 : 11
5
None of these