X1, X2 और X3 का औसत 14 है, X2 और X3 का दगु ना योग 30 है। X1 का मूल्य तया है?
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surface of radius a = 1 m surrounding a charge of 8.85 pC.
ε0 = 8.85 x10-12 C2
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The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1 ? a) 12 b) 16 c) 20 d) 27.
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