The average of 12 observations is 8. Later it was observed that one observation 10 is wrongly written as 13. The correct average of observation is.
A7
B17.5
C7.75
D8
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Related Questions:
If the average of 6 consecutive even number is 25, the difference between the largest and the smallest number is :
ഒരു ക്ലാസിലെ 24 കുട്ടികളുടെ ശരാശരി മാർക്ക് 40. ഒരു കുട്ടി കൂടി ചേർന്നപ്പോൾ ശരാശരി മാർക്ക് 41 ആയി. പുതിയ കുട്ടിക്ക് എത്ര മാർക്കുണ്ടായിരുന്നു?
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