1.

On Saturday, 90% of the received emails were read out of which only 10% were replied. If only 18 emails were replied, then the number of spam emails received on Saturday is what percentage of the total number of spam emails received on all six days?

A. 4%
B. 5%
C. 8%
D. 10%
E. 12%
Answer» E. 12%


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