The ratio of Ahmad's age to Asher's age is 8 : 3. Next year, their average age will be 23. How old will Ahmad be in 10 years' time?
| |
Ahmad |
Asher |
Total |
| Before |
8 u |
3 u |
44 |
| Change |
+ 1 |
+ 1 |
|
| After |
8 u + 1 |
3 u + 1 |
46 |
Total age of Ahmad and Asher this year
= 8 u + 3 u
= 11 u
Total age of Ahmad and Asher this year
= 2 x 23 - 1 - 1
= 46 - 2
= 44
11 u = 44
1 u = 44 ÷ 11 = 4
Ahmad's age in 10 years' time
= 8 u + 10
= 8 x 4 + 10
= 32 + 10
= 42
Answer(s): 42
