Question

Marcia's wages are £260 per week.

She wants to save some money to buy a computer.
The computer costs £218.
Marcia is going to save 5% of her wages each week.
How many weeks will it take her to save enough money to buy the computer?​

Answer 1

17 weeks

Explanation:

Please refer to the picture attached.

At the end of each week, she will be able to save 13 dollars. I'm the 17th week, whe will save more than 218 dollars and will be able to afford to buy the computer.

However, in 16th week, she will only save 208 dollars which is insufficient to buy the laptop.

Hence, u round up the value of x in order to get the answer.