SSC GD Constable previous year question
The average marks of 17 students was 180. But later it was found that the score of one student was wrongly entered as 72 instead of 27. What is the correct average of their score?
Asked in SSC GD Constable 2024: 27 Feb 2024 Shift 1 · Quantitative Aptitude
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Correct answer: (D) 177.35
Correction = 72−27=45. New sum = 17×180−45=3,015. New average = 3,015/17 = 177.35.
हिंदी में प्रश्न
17 छात्रों के औसत अंक 180 थे। लेकिन बाद में यह पाया गया कि एक छात्र के अंक गलती से 27 के स्थान पर 72 दर्ज कर दिए गए थे। छात्रों के अंकों का सही औसत कितना है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 178.98
Correction = 72−27=45. New sum = 17×180−45=3,015. New average = 3,015/17 = 177.35.
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