Question

A simple economy consists of three industries: agriculture, manifacturing and services.
The input-output matrix associated with this economy is
A M S
A 0.1 0.1 0.2
M 0.1 0.2 0.1
S 0.1 0.2 0.2

Find the gross output of goods needed to satisfy a consumer demand for 110 million dollars worth of agricultural products, 140 million dollars worth of manufactured products, and 180 million dollars worth of services.