Answer
$130,000
Work Step by Step
Total amount won:
$25,000(5\times5000) + 100,000(10\times10,000) +175,000(7\times25,000) + 250,000(5\times50,000) + 1,200,000(12\times100,000) + 1,250,000(5\times250,000) + 2,500,000 (5\times500,000) + 1,000,000 (1\times1,000,000) = 6,500,000$
Total number of contestants: $5+10+7+5+12+5+5+1=50$
Mean: $6,500,000\div50=130,000$
