AP Police Constable practice question
A number, when increased by 30%, gives 1274. The number is:
From a AP Police Constable Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (B) 980
Let the number be x. Increased by 30% it becomes x × (100 + 30)/100 = (13/10)x = 1274, so x = 1274 × 100/130 = 980. (Reducing 1274 by 30% instead gives 891.8, which is wrong.)
हिंदी में प्रश्न
एक संख्या को 30% बढ़ाने पर 1274 प्राप्त होता है। वह संख्या है:
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सही उत्तर: (B) 980
माना संख्या x है। 30% बढ़ाने पर यह x × (100 + 30)/100 = (13/10)x = 1274 हो जाती है, अतः x = 1274 × 100/130 = 980। (1274 को 30% घटा देने पर 891.8 आता है, जो गलत है।)
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