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1. X:Y=4:7% 21X + 2Y; 7X + 8१-4व्र जनुशोड शवsy N . 0D |
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Answer» x : y = 4 : 7 x = 4k y = 7k 21x+2y : 7x+8y = (21×4k+2×7k) : (7×4k+8×7k) = 98k : 84k = 7 : 6 |
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