The answer would be 1.6666666668
The total demand is: 200 + 400 + 250 + 350 = 1200
Production is 350 a month.
Multiply by the 4 months: 350 x 4 = 1400.
Now subtract the demand from the total production:
1400 - 1200 = 200 left for inventory.
The answer is b. 200
About 9 with all the factors repeating but switched around but without any repeating numbers their are about 5