Could you solve this question for me?
If $10$ years are added to $3/5$ of the age of John, he will be $4$ years younger to the present age of his elder brother who will be $25$ years. What is the present age of John?
Thanks in advance.
Asked
Active
Viewed 54 times
1
user 1
- 7,447
-
1It is normally recommended that you show some working as this appears to be a homework question. – George1811 Apr 21 '14 at 16:29
-
Sorry I am very weak in mathematics – Karim Ghazali Apr 21 '14 at 17:04
2 Answers
2
Treat it as an equation. Let $x$ be the present age of John. Now $$\frac{3}{5}x+10=21$$ I'll leave the rest up to you.
George1811
- 1,981
1
Let $x$ be the present age of John, then \begin{align} \frac{3}{5}x+10&=25-4\\ \frac{3}{5}x+10&=21\\ \frac{3}{5}x&=11\\ x&=\frac{5}{3}\cdot11\\ x&=\frac{55}{3} \end{align} Therefore, the present age of John is $\cfrac{55}{3}$ years.
Anastasiya-Romanova 秀
- 19,345
-
-
My pleasure @KarimGhazali. I'm glad you're happy. Thanks also for accepting my answer. (✿◠‿◠) – Anastasiya-Romanova 秀 Apr 21 '14 at 17:07
-
@KarimGhazali Why did you take back your vote from my answer!? You can only accept one answer. (╥﹏╥) – Anastasiya-Romanova 秀 Apr 21 '14 at 17:23
-
Sorry I did not know we can only vote up one answer thanks for telling. It's back there again. – Karim Ghazali Apr 21 '14 at 17:50
-
@KarimGhazali It's OK. If you have enough reputation (15 points), you can vote up back our answers. George's answer also deserves vote up. (ô‿ô) – Anastasiya-Romanova 秀 Apr 21 '14 at 18:08