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The present age of a brother is 2 years more than five times the age................Find the present age of the brother?

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The present age of a brother is 2 years more than five times the age of his sister.
Four years hence, brother's age will be 4 years more than thrice the age of the sister.
Find the present age of the brother?

posted Jul 1 by Akriti

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2 Answers

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27 years old


Brother- b
Sister- s
b=5s+2
b+4=3(s+4)+4 --> b=3s+12


5s+2=3s+12---> s=5 ---> b=27

answer Jul 1 by Hanifa Mammadov
0 votes

We can write two equations, as follows:
1.- Y = 2 + 5X Y= age of brother, X = age of sister
2.- Y + 4 = 4 + 3 (X + 4)
By solving the system of two equations,
X = 5 and Y = 27

answer Jul 4 by anonymous



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