Read the passage given and solve the questions based on it.
In the last year’s “Tycoon Contest”, nine teams from different colleges participated. Navneet Anand, the quiz master, asked the nine teams— “I have 9 coins, the ratio of the weight of the coins are same, except one. I give the different numbers to these 9 coins starting from 11 to 19. The team who can find the coin with different weights in the least number of weighings can take that coin and will be the winner.”
Team number 5 said that they knew the answer and if they had won the coin, what was their answer?