Question

Tank A contains 90% O2 that is mixed with another tank B containing 30% of O2 to get a Tank C containing 65% O2. What is the ratio of the gas used from Tank A to that used from Tank B?
a)1.0
b)1.2
c)1.4
d)1.6

Answer 1

Answer:

1.2 not sure just gave answer eye closed for points