Adam is 6 times as old as Bryan now.
In 16 years time, their total age is 60 years.
How old is Adam now?
- How old is Bryan now?
- How many years is Bryan younger than Adam?
- How old was Adam 1 years ago?
|
Adam |
Bryan |
Total |
Now |
6 u |
1 u |
7 u |
Change |
+ 16 |
+ 16 |
+ 32 |
16 years later |
6 u + 16 |
1 u + 16 |
60 |
(a)
Total age of Adam and Bryan now
= 60 - 32
= 28
Now
Adam's age = 6 u
Bryan's age = 1 u
Total age of Adam and Bryan = 7 u
7 u = 28
1 u = 28 ÷ 7 = 4
Bryan's age now
= 1 u
= 4
(b)
Number of years that Bryan is younger than Adam
= 6 u - 1 u
= 5 u
= 5 x 4
= 20
(c)
Adam's age 1 years' ago
= 6 u - 1
= 6 x 4 - 1
= 24 - 1
= 23
Answer(s): (a) 4; (b) 20; (c) 23