The money with two persons Anil and Sunil are in the ratio of 3 : 4. Anil can spends money in 5 days and Sunil can spends money in 6 days. Both spend money with their constant rate. After how many days will their money be in the ratio of 9 : 20?

• A. 3 days
• B. 4 days
• C. 2 days
• D. 1 day