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4 പേരുടെ ശരാശരി വയസ്സ് 24. അഞ്ച്വാമനായി ഒരാൾ കൂടി ചേർന്നാൽ ശരാശരി വയസ്സ് 25, എങ്കിൽ അഞ്ചാമൻറ വയസ്സ് എത്ര?

A26

B27

C28

D29

Answer:

D. 29

Read Explanation:

4 പേരുടെ ആകെ വയസ്സ് = 4 × 24 = 96 5 പേരുടെ ആകെ വയസ്സ് = 5 × 25=125 അഞ്ചാമൻറ വയസ്സ് = 125 - 96 = 29


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