Question

John has £25, he is saving up for £100, but he earns £5 a week How many weeks until John has £100?

Answer 1

$\textbf{Answer}$

John has £5 money.

John needs total £100 money.

So remaining money that John needs to earn,
Remaining money = £100 - £25
$\textbf{Remaining money = 75}$£

Since John earns £5 in one week.

=> John earns £1 in 1/5 week

=> John will earn £75 in 75/5 weeks

=> John will earn £75 in 15 weeks.

$\textbf{John will have}$ £100 $\textbf{in 15 weeks}$

$\textbf{Hope My Answer Helped}$
$\textbf{Thanks}$