तीन संख्याओं का औसत 60 है। यदि प्रथम संख्या सभी संख्याओं के योग का एक- चौथाई है। प्रथम संख्या है।A. 30B. 36C. 42D. 45

तीन संख्याओं का औसत 60 है। य�

1.	तीन संख्याओं का औसत 60 है। यदि प्रथम संख्या सभी संख्याओं के योग का एक- चौथाई है। प्रथम संख्या है।A. 30B. 36C. 42D. 45
Answer» Correct Answer - D तीन संख्याओ का योग `= 6xx3=180` पहली संख्या`=1/4xx180`=45

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तीन संख्याओं का औसत 60 है। यदि प्रथम संख्या सभी संख्याओं के योग का एक- चौथाई है। प्रथम संख्या है।A. 30B. 36C. 42D. 45

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