Question

Vodago charges 4c/sec for a cell phone call. How much will it cost in Rands to have a
5-minute conversation?

Answer 1

To calculate the cost of a 5-minute conversation at a rate of 4 cents per second, you can use the following steps:

1. Determine the total number of seconds in a 5-minute conversation:

 $\[ 5 \text{ minutes} \times 60 \text{ seconds/minute} = 300 \text{ seconds} \]$

2. Multiply the total number of seconds by the cost per second:

$\[ 300 \text{ seconds} \times 4 \text{ cents/second} \]$

3. Convert the total cost from cents to Rands. Since there are 100 cents in a Rand, divide by 100:

$\[ \frac{300 \times 4}{100} \text{ Rands} \]$

Now, perform the calculations:

$\[ 300 \times 4 = 1200 \]$

$\[ \frac{1200}{100} = 12 \]$

Therefore, it will cost 12 Rands to have a 5-minute conversation at a rate of 4 cents per second with Vodago.