Question
35% of βuβ added to 65% of βvβ results in 130.
If βvβ is 70 more than βuβ, find the value of (2u β v)Solution
According to the question, 0.35u + 0.65v = 130β¦β¦.. (1) And, v β u = 70β¦β¦. (2) On solving equation (1) and (2), we get u = 80 and v = 150 Therefore, (2u β v) = 160 β 150 = 10
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