Emilynodalidn
Answered

IDNStudy.com, kung saan ang mga eksperto at komunidad ay nagtutulungan para sagutin ang iyong mga tanong. Magtanong ng anumang bagay at makatanggap ng detalyadong sagot mula sa aming komunidad ng mga eksperto.

Carol is five times older as her brother. She will be three times as old as her brother in two years. How old is Carol now??

Sagot :

Carol is 10 years old right now because her brother is 2 and in two years her brother is 4 and she is 12 which three times her brothers age.
Present ages:
Let brother's age be x
Carol's age is 5x

Ages in two years:
Brother's age:  x + 2
Carol's age:  5x + 2

In two years, Carol;s age is 3 times his brother's:
5x + 2 = 3 (x+2)
5x + 2 = 3x + 6
5x - 3x = 6 - 2
2x = 4
2x/2 = 4/2
x = 2

Carol's brother: x = 2   ⇒   2 years old
Carol: 5x = 5(2) = 10  ⇒     10 years old

In two years:
Brother:  2 + 2 = 4 years old
Carol" 10 + 2 = 12  years old  (three times the age of his brother, 4 years)


At present, Carol is 10 years old, which is five times his brother's age, 2.

Final Answer:  Carol is now 10 years old.