SOLUTION: The sum of the ages of a woman and her daughter is 46years. In four years time the ratio of dere ages will be 7:2 find there present age?
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You can put this solution on YOUR website! The sum of the ages of a woman and her daughter is 46years.
w + d = 46
or
d = (46-w)
;
In four years time the ratio of there ages will be 7:2 =
Cross multiply
2(w+4) = 7(d+4)
2w + 8 = 7d + 28
2w = 7d + 28 - 8
2w = 7d + 20
replace d with (46-w)
2w = 7(46-w) + 20
2w = 322 - 7w + 20
2w + 7w = 342
9w = 342
w = 342/9
w = 38 yrs is the woman's age
:
I'll let you find the daughter's age, check your solutions in both statements
