SSC GD Constable previous year question
The average of 28 numbers is 110. If we add a number 'B' to each number, then the average becomes 128. What is the value of B?
Asked in SSC GD Constable 2024: 23 Feb 2024 Shift 1 · Quantitative Aptitude
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Correct answer: (C) 18
Adding B to every number shifts the average by exactly B: 128−110 = 18.
हिंदी में प्रश्न
28 संख्याओं का औसत 110 है। यदि हम प्रत्येक संख्या में एक संख्या 'B' जोड़ते हैं, तो औसत 128 हो जाता है। B का मान कितना है?
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सही उत्तर: (C) 18
Adding B to every number shifts the average by exactly B: 128−110 = 18.
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