Question
28% of ‘k’ added to 72% of ‘l’ gives a total of
144. If ‘l’ is 48 more than ‘k’, then find the value of (2k – l).Solution
ATQ,
00.28k + 0.72l = 144…….. (1)
And, l – k = 48………. (2)
On solving equation (1) and (2), we get
k = 80 and l = 128
Therefore, (2k – l) = 160 – 128 = 32
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