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Why is this a biology question?

Biology Level 2

If 50+30=70, find the value of 60+40

Note: This question (though really lame), has a logic behind it.

80 10 90 70 20 100 50 110

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 8 million people

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including olympiad champions, researchers, and professionals.

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by Krishna Ar

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