Premium tea is $0.6 per ounce and super premium tea is $0.9 per ounce. If the mix of premium and super premium costs $7 for 10 ounces, what is the approximate share of super premium in this mix?

Ratio Mixtures Problem Solving, level 500 600

Premium tea is $0.6 per ounce and super premium tea is $0.9 per ounce. If the mix of premium and super premium costs $7 for 10 ounces, what is the approximate share of super premium in this mix?

A) 51%
B) Less than 50%
C) 60%
D) 70%
E) 55%