RRB Group D practice question
Simplify: √0.0169 + √1.69 + √169
From a RRB Group D Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (D) 14.43
Each term is a perfect square of a decimal: √0.0169 = 0.13, √1.69 = 1.3, √169 = 13 (the number of decimal places halves under the root). Sum = 0.13 + 1.3 + 13 = 14.43. Taking √0.0169 as 1.3 shifts the decimal point wrongly.
हिंदी में प्रश्न
सरल कीजिए: √0.0169 + √1.69 + √169
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सही उत्तर: (D) 14.43
प्रत्येक पद किसी दशमलव का पूर्ण वर्ग है: √0.0169 = 0.13, √1.69 = 1.3, √169 = 13 (मूल के नीचे दशमलव स्थान आधे हो जाते हैं)। योग = 0.13 + 1.3 + 13 = 14.43। √0.0169 को 1.3 लेना दशमलव बिंदु की गलती है।
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