Question

A calculator can perform a single calculation in about 0.0000034 sec. How much it will take time to calculate 4000 such calculations ? Express in scientific notation

Answer 1

Hey there !

Solution:

This is a sum based on Ratio and Proportions.

1 calculation = 0.0000034 seconds

Which is 1 calculation = 3.4 × 10⁻⁶ seconds. This implies 4000 calculations will be ?

1 : 3.4 × 10⁻⁶ :: 4000 = ?

=> 4000 × 3.4 × 10⁻⁶

=> 4 × 10³ × 3.4 × 10⁻⁶

=> 13.6 × 10⁻³ seconds.

Hence the calculator would take  13.6 × 10⁻³ seconds.

Hope my answer helped !

Answer 2

$\huge\bold\color{red}{Hello Mate}$

$\color{blue}{This Is Sum Based On Ratio And Proportion}$

$\huge\color{green}{GIVEN :}$

Calculation 1 = 3.4 × 10^-6 seconds

TO Find

4000 calculations will be =?

1:3.4×10^-6::4000=?

$= > 4 \times {10}^{ 3} \times 3.4 \times {10}^{ - 6}$
$= > 13.6 \times {10}^{ - 3} seconds$

So, Calculator Would Take
$13.6 \times {10}^{ - 3}$

HOPE IT WILL HELP YOU

$\bold\underline{BE BRAINLY}$