Question
30% of ‘x’ added to 70% of ‘y’ gives 140. If
‘y’ is 60 more than ‘x’, find the value of (2x – y)Solution
According to the question, 0.3x + 0.7y = 140…….. (1) And, y – x = 60……. (2) On solving equation (1) and (2), we get x = 100 and y = 160 Therefore, (2x – y) = 200 – 160 = 40
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