To make 500 mL of 70% alcohol, the amount of "190 proof" required is
368 mL
324 mL
250 mL
182 mL
368 mL
Rationale: Since 190 proof is 95% alcohol, the answer is obtained as follows: 70 ---- 95 = X ----- 500 . So, 95X = 500 x 70 . Therefore, X = 500 x 70 ----------- 95 = 368 mL.
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