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What characterises the soil known as peat?

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The Indonesian Army special forces group, founded in 1952, that conducts special operations missions for................

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?

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

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

The present age of a brother is 2 years more than four times the age of his sister. Two years hence, brother's age will be 4 years more than twice the age of the sister. Find the present age of the brother.

The present age of a brother is 6 years more than four times the age of his sister. Six years hence, brother's age will be four years more than thrice the age of the sister. Find the present age of the brother.

15 years ago, Kanika's father was five times as old as Kanika. After 15 years, her father will be thrice as old as her. What is the present age of Kanika?

The sum of the present ages of a father and his son is 60 years. Six year ago, father's age was five times the age of the son. After 6 years, what will be son's age?

Ramesh says to his son Girish, "My age was two years more than 7 times of your's age before 30 and 1/2 a year and after 2 and 1/2 a year, my age will be twice of yours age of 1/2 a year before". What will be the age of Girish after 12 and 1/2 a year.