Selekanyo sa metsi a a fetlang mo nokeng ka nako e le nngwe ke digalane di le 4000. Morago ga letsatsi la pula e ntsi, selekanyo sa metsi a a fetlang mo nokeng se oketsega gabedi mo lefelong le le lengwe. Fa selekanyo sa metsi a a fetlang mo nokeng mo lefelong leo se oketsega ka digalane di le 6000 mo letsatsing la boraro, bala palogotlhe ya metsi a a fetlang mo nokeng mo lefelong leo.

I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. How old am I?
Morago ga letsatsi la pula, selekanyo sa metsi a a fetlang mo nokeng se oketsega gabedi go nna 2*4000 = <<2*4000=8000>>8000 digalane.
Morago ga dipula tse di maatla, selekanyo sa metsi a a fetlang mo nokeng mo letsatsing la boraro ke 8000+6000 = <<8000+6000=14000>>14000 digalane. 
#### 14000 

Let X be my age. My brother is X + 3 years old. My sister is X - 2 years old.
My mom is (X + 3) * 3 - 1 years old.
The sum of our ages is X + (X+3) + (X-2) + [(X+3)*3 - 1] = 87 years old.
Multiplying through the parentheses and combining like terms, you get X*6 + 9 = 87 years old.
Subtracting nine from both sides and dividing both sides by 6, you get X = 13 years old.
#### 13