There are10,000 executives. The pie chart gives company shares. Ratios of executives with a management degree to those without one are C1 3:2, C2 1:4, C3 5:3, C4 2:3, C5 9:1 and C6 3:4. How many degree holders are in C2 and C5 together?
C2 has5% of10,000=500 executives; its degree-holding fraction is1/5, giving100. C5 has20% of10,000=2000; its fraction is9/10, giving1800. Their combined total is1900, C.
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