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Worker bees are...

Worker bees are

A

Fertile females

B

Sterile females

C

When queen is absent then act as queen

D

Sterile drones

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150 workers were engaged to finish a job in a certain number of days. 4 workers dropped out on second day, 4 more workers dropped out on third day and so on. It took 8 more days to finish the work. Find the number of days in which the work was completed.

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MODERN PUBLICATION-ANIMAL KINGDOM-EXAMPLE
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