9 संख्याओं का औसत 30 है। प्रथम 5 संख्याओं का औसत 25 है एव अंतिम 3 संख्याओ का औसत 35 है छठी संख्या ज्ञात करे?A. 20B. 30C. 40D. 50

9 संख्याओं का औसत 30 है। प्रथ�

1.	9 संख्याओं का औसत 30 है। प्रथम 5 संख्याओं का औसत 25 है एव अंतिम 3 संख्याओ का औसत 35 है छठी संख्या ज्ञात करे?A. 20B. 30C. 40D. 50
Answer» Correct Answer - C Sum of 9 no = 30 x 9 =270 Sum of first five no = 25 x 5= 125 Sum of last three no = 35 x 3 = 105 6th no is 270-125-105=40

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9 संख्याओं का औसत 30 है। प्रथम 5 संख्याओं का औसत 25 है एव अंतिम 3 संख्याओ का औसत 35 है छठी संख्या ज्ञात करे?A. 20B. 30C. 40D. 50

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