1. 6 pints of a 20 percent solution of alcohol in water are mixed with 4 pints of a 10 percent alcohol in water solution. The percentage alcohol in the new solution is
A. 16
B. 15
C. 14
D. 13
E. 12
2. ASB is a quarter circle. PQRS is a rectangle with sides PQ = 8 and PS = 6. What is the length of the arc AQB ?
A. 5π
B. 10π
C. 25
D. 14
E. 28