Delhi Police Constable practice question
Simplify: ∛0.000343 + ∛0.343 + ∛343
From a Delhi Police Constable Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (C) 7.77
Each term is a perfect cube of a decimal: ∛0.000343 = 0.07, ∛0.343 = 0.7, ∛343 = 7 (the number of decimal places becomes one-third under the root). Sum = 0.07 + 0.7 + 7 = 7.77. Taking ∛0.000343 as 0.7 shifts the decimal point wrongly.
हिंदी में प्रश्न
सरल कीजिए: ∛0.000343 + ∛0.343 + ∛343
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सही उत्तर: (C) 7.77
प्रत्येक पद किसी दशमलव का पूर्ण घन है: ∛0.000343 = 0.07, ∛0.343 = 0.7, ∛343 = 7 (मूल के नीचे दशमलव स्थान एक-तिहाई हो जाते हैं)। योग = 0.07 + 0.7 + 7 = 7.77। ∛0.000343 को 0.7 लेना दशमलव बिंदु की गलती है।
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