alleryఒక సంఖ్య మూడు రెట్లు పెరిగింది, ఆపై 4తో తగ్గించబడింది, 23. సంఖ్య?
A7
B10
C8
D9
Answer & Solution
Correct answer: D. 9
ఆపరేషన్లను అన్డూ చేయడం వలన (23 + 4) ÷ 3 = 9.
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