Answer: Each friend received 3 paper cranes.
Explanation:
Given : Number of paper cranes made by Adam on Monday = 19
Number of paper cranes made by Adam on Tuesday = 8
Total number of paper cranes made by Adam = (Number of paper cranes made on Monday) + (Number of paper cranes made on Tuesday )
= 19+8
= 27
Now , all paper cranes are equally divided into 9 friends , the number of paper cranes received by each friend = (Total number of paper cranes ) ÷ (9)
= (27)÷ (9)
= 3
Hence, each friend received 3 paper cranes.