Question

A computer can add two numbers in about 10 Superscript negative 810−8 second. Express in scientific notation how long it would take this computer to do this task 700 comma 000700,000 times.

Answer 1

`7* 10^(-3)\text{ Seconds}`

Explanation:

We are given the following in the question:

Time required by a computer to perform addition operation =

`10^(-8)\text{Seconds}`

Number of times the task needs to be performed =

`70000\\=7* 10^5`

Total time required =

`\text{Time required for 1 task}* \text{Total number of task}\\=10^(-8)* 7* 10^(5)\\=7* 10^(-8+5)\\=7* 10^(-3)\text{ Seconds}`

It would take
`7* 10^(-3)` seconds to perform the task 700,000 times.