Question

Tim buys a torch and battery the torch costs 11 times as much as the battery Tim pays with a ?10 note and he gets ?4.84 change how much does the battery cost

Answer 1

The cost of 1 battery is 0.43

Explanation:

Let the cost of 1 battery be x

We are given that the torch costs 11 times as much as the battery

Cost of torch = 11x

Total cost of 1 battery and torch = 11x+x=12x

Tim pays $10

He receives change of $4.84

Total cost of 1 torch and battery = 10 - 4.84 =$5.16

So,
`12x= 5.16`

`x= (5.16)/(12)`

`x=0.43`

Hence the cost of 1 battery is 0.43