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25 പേരുടെ ശരാശരി വയസ്സ് 31. ശരാശരി കണക്കാക്കിയപ്പോൾ ഒരാളുടെ വയസ്സ് 25 എന്നതിനുപകരം 35 എന്ന് എടുത്തു. എന്നാൽ യഥാർഥ ശരാശരി എത്ര?

A30.2

B30.6

C31.2

D31.7

Answer:

B. 30.6

Read Explanation:

25 പേരുടെ ആകെ വയസ്സ് = 25 × 31= 775 യഥാർഥ തുക = 775 - 35 + 25 = 765 ശരാശരി = 765/25 = 30.6


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