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यदि `(a+b):(b+c):(c+a) = 6 : 7 : 8` हो और `(a+b+c) = 14` हो तो c का मान ज्ञात करे।A. 6B. 7C. 8D. 4 |
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Answer» Correct Answer - A (a+b) : (b+c) : (c+a) 6 : 7 : 8 Let 6x : 7x : 8x `therefore a+b+b+c+c+a implies 6x+7x+8x` `2a+2b+2c implies 21x` `implies a+b+c=(21)/(2)x` `implies a+b+c=14 ` given `implies (21x)/(2)=14` `x=(28)/(21)=(4)/(3)` ` therefore a+b=6xx(4)/(3)=8` `therefore a+b+c=14` c=14-8=6 |
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