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The even numbers less than 20 are 2, 4, 6, 8, 10, 12, 14, 16, and 18. To find the sum, you can use the formula for the sum of an arithmetic series: ( n/2 \times (first\ term + last\ term) ). Here, there are 9 even numbers, so the sum is ( 9/2 \times (2 + 18) = 9/2 \times 20 = 90 ). Thus, the sum of all even numbers less than 20 is 90.

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3w ago

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