The age of the brother 8 years ago and the present age of sister is in the ratio of 18:11 and the sum of the ages is 74. what is the age of the brother?
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8years ago brother's age = 18x
present age of brother = 18x + 8
present age of sister = 11x
18x + 8 + 11x = 74
29x = 74 - 8 = 66
x = 66/29 = 2.28
age of brother = 18*2.28 + 8 = 49
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