A group of 3 friends staying together, consume 54 kg of wheat every month. Some more friends join this group and they find that the same amount of wheat lasts for 18 days. How many new members are there in this group now?
Let the number of friends joined be 
No of friends | 3 |
|
Time (days) | 30 | 18 |
Therefore the number of friends joined the group is 5 – 3 = 2.
13