तीन समूह जिनमे 55.60 एव 45 विद्यार्थी उपस्थित है, का औसत 50.55 एव 60 है। तो सभी विद्यार्थीयो का औसत ज्ञात करे:A. 54.68B. 53.33C. 55D. None of these

तीन समूह जिनमे 55.60 एव 45 विद्य

1.	तीन समूह जिनमे 55.60 एव 45 विद्यार्थी उपस्थित है, का औसत 50.55 एव 60 है। तो सभी विद्यार्थीयो का औसत ज्ञात करे:A. 54.68B. 53.33C. 55D. None of these
Answer» Correct Answer - A Total marks of three batches = 55 x 50 + 60 x 55 + 45 x 60 =2750+3300+2700 =8750 Average =`8750/(55+60+45)=8750/160` `=875/16=54.68`

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तीन समूह जिनमे 55.60 एव 45 विद्यार्थी उपस्थित है, का औसत 50.55 एव 60 है। तो सभी विद्यार्थीयो का औसत ज्ञात करे:A. 54.68B. 53.33C. 55D. None of these

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