Answer:
50 lbs.
Step-by-step explanation:
1 litre of 10% solution contains 100mL of iodine
1 litre of 90% solution contains 900mL of iodine
Mixing them will produce 2 litres of solution containing 1000mL of iodine which is 50% iodine.
To produce 8 litres of 50% iodine they can mix 4 litres of 10% and 4 litres of 90%
A/3=7/10
21=10a
a=2.1
100a=100*2.1=210
Answer:
21
Step-by-step explanation:
