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Find the sum of i] 41, 36, 31, ..........

Find the sum of
i] 41, 36, 31, ....... upto 10 terms
ii] -26, -24, -22, ..... upto 36 terms.

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The correct Answer is:
i] `= 5 xx 37 = 185`.
ii] `= 18 [ -52 + 170] = 18 xx 18 = 324`.
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ZEN PUBLICATION-ARITHMETIC PROGRESSIONS-ZEN ADDITIONAL QUESTIONS (SHORT-ANSWER [SA] TYPE 1 - QUESTIONS)
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  8. Find the sum of a] first 10 multiples of 8 b] first 25 multiples o...

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  10. Find the sum of first n odd natural numbers.

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  11. Find the sum of first n even numbers.

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