To prepare 300 units of the 6% solution, the required number of units of 10% solution needed will be 180 units.
Let the number of units of 10% solution = t
We can set up the equation thus :
10% solution × number of units = (300 × 6%)
10% × t = 300 × 6%
0.1t = 0.06 × 300
0.1t = 18
Divide both sides by 0.1 ; to isolate t
0.1t / 0.1 = 18 / 0.1
t = 180
Therefore, 180 units of the 10% solution are required to prepare 300 units of 6% solution.
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