Question

How did the Wangarans know when the caravans wanted to make an offer to trade

Answer 1

Beating drums

Step-by-step explanation:

How was the system of silent barter a major advantage to the wangarans it helped guard their secret location of gold mines

Answer 2

Beating drums. How was the system of silent barter a major advantage to the Wangarans? It helped guard their secret location of gold mines.