Jane is now 4 times as old as her brother Andrew. In one year, Jane will be 3 times as old as Andrew will be then. How old is Jane now?
Ok,
Let's have Jane's age as "j" and Andrew's age as "a".
j = 4a
j+1 = 3(a+1)
We convert j into 4a
4a + 1 = 3a + 3
4a = 3a + 2
a = 2
If a = 2
j = 8
Andrew is 2 years old
Jane is 8 yrs old
(As of now)
