Question

(b) If $120.99 is charged for 654 units of electricity used, find the cost of one unit of electricity. ​

Answer 1

Answer:

if 654 units charged 120.99 so 1 unit cost will be 0.56 paise

Answer 2

We have the given data  in the question as follows

total units =654

total bill = $120.99

we need to find the one unit cost

let us assume one unit cost =x

now

654=120.99

    1=x

now by simple cross multiplication we get the answer

$654x=120.99\\x=\frac{120.99}{654} \\x=0.185$

As  x is the one unit cost hence (0.185 is the cost of 1 unit)