The sum of first 20 terms of the sequence 0.7,0.77,0.777,......, is :
Held on 7 Apr 2013 · Verified 6 Jul 2026.
817(179+10−20)
97(99+10−20)
817(179−10−20)
97(99−10−20)
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If the roots of x² - 5x + k = 0 are in the ratio 2:3, then k equals:
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