Problema Solution
John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years, John will be three times as old as Alice. How old is Peter now?
Answer provided by our tutors
Let
x = the age of Peter now
2x = the age of John now
x - 5 = the age of Alice now
In 5 years, John will be three times as old as Alice:
2x + 5 = 3(x - 5 + 5)
........
........
x = 5 years
Peter is 5 years old now.