Adam is 7 times as old as Bryan now.
In 11 years time, their total age is 70 years.
How old is Adam now?
- How old is Bryan now?
- How many years is Bryan younger than Adam?
- How old was Adam 26 years ago?
|
Adam |
Bryan |
Total |
Now |
7 u |
1 u |
8 u |
Change |
+ 11 |
+ 11 |
+ 22 |
11 years later |
7 u + 11 |
1 u + 11 |
70 |
(a)
Total age of Adam and Bryan now
= 70 - 22
= 48
Now
Adam's age = 7 u
Bryan's age = 1 u
Total age of Adam and Bryan = 8 u
8 u = 48
1 u = 48 ÷ 8 = 6
Bryan's age now
= 1 u
= 6
(b)
Number of years that Bryan is younger than Adam
= 7 u - 1 u
= 6 u
= 6 x 6
= 36
(c)
Adam's age 26 years' ago
= 7 u - 26
= 7 x 6 - 26
= 42 - 26
= 16
Answer(s): (a) 6; (b) 36; (c) 16