Asked by Immanuella
The sum of the age of a woman and her daughter is 46 years.In 4 years the ratio of their age will be 7:2.How many years time will the sum of their age be 66 years
Answers
Answered by
Damon
well to make it easy just add 10 to each so in ten years:
but if you insist
w + d = 46
(w+4)/(d+4) = 7/2
d = (46 - w)
(w+4) / (50-w) = 7/2
2 w + 8 = 350 - 7 w
9 w = 342
w = 38
d = 46 - 38 = 8
now
8+x + 38 + x = 66
46 +2x = 66
2x = 20
x = 10
remarkable :)
but if you insist
w + d = 46
(w+4)/(d+4) = 7/2
d = (46 - w)
(w+4) / (50-w) = 7/2
2 w + 8 = 350 - 7 w
9 w = 342
w = 38
d = 46 - 38 = 8
now
8+x + 38 + x = 66
46 +2x = 66
2x = 20
x = 10
remarkable :)
Answered by
Mary Jones
*GASPS* 🙀
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