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Test # 13


1.
The sum of the series : sqr(1) + sqr(2) + sqr(3) + sqr(4) + + sqr(15) is

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Idiom of the Day

irons in the fire
the things that one is doing, the projects with which a person is busy
Recently, my coworker has too many irons in the fire. That is why he became sick.
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