allery0.777... என்ற மீளும் தசம எண் எந்தப் பின்னத்திற்குச் சமம்?
A7/9
B7/10
C1/7
D7/99
Answer & Solution
Correct answer: A. 7/9
x = 0.777... எனில், 10x - x = 7 ஆகும், எனவே x = 7/9.
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