3 years ago

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

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