Question
45% of ‘r’ added to 55% of ‘s’ gives 180. If
‘s’ is 60 more than ‘r’, find the value of (2r – s)Solution
According to the question, 0.45r + 0.55s = 180…….. (1) And, s – r = 60……. (2) On solving equation (1) and (2), we get r = 120 and s = 180 Therefore, (2r – s) = 240 – 180 = 60
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