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anzhelika [568]
3 years ago
8

a boy is older than his sister by 3 years five years ago, the ratio of their ages was 4 : 3 find his present.​

Mathematics
2 answers:
pashok25 [27]3 years ago
8 0
B:S = 4x:3x
4x - 3x = 3
x = 3
They were 12 & 9.
Add 5 to that.
So he’s now 17 and she’s 14
AnnZ [28]3 years ago
8 0

Answer:

five years ago -- boy-   x+3 years

                           sister ---  x

ratio-- 4:3  so difference is 3 years

4-3-- 1   1--3

five years ago ---  sister  :3*3--9   brother : 4*3--12

present : sister 14 years and brother 17 years old

 

Step-by-step explanation:

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