Question

Kadin wants to buy a laptop that costs $500. He has already saved $80. He decides to save $30 each week. What is the least number of weeks he should save for to achieve his goal?

Answer 1

Answer: 14 weeks

Step-by-step explanation:

Given

Kadin wants to buy a laptop of $\ 500$

He already saved $\ 80$ and started saving $\ 30$ each week

Suppose he saves for $x$ weeks to get the laptop i.e.

$\Rightarrow 500=80+30x\\\Rightarrow 420=30x\\\Rightarrow x=14\ \text{weeks}$

So, he need to save for 14 weeks to buy the laptop