if 20a+25b+30c+35d+40e=150 then a+b+c+d+e= ?
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Three positive integers a, b, and c are such that their average is 20 and a ≤ b ≤ c. If the median is (a + 11), what is the least possible value of c?
A. 23
B. 21
C. 25
D. 26
E. 24
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