49/(49000*1.660*10^{-27})=6.022*10^{23}

Prasenjeet,

The problem is : 49/(49000*1.660*10-27)=6.022*10^23

Use scientific notation & simplify:

49/(49*10^3 * 1.660 * 10^-27)=

1/(10^3 * 1.660 * 10^-27)

1/(1.660 * 10^-24) =

(1/1.660)*10^24 =

6.024 * 10^23

Note: The original problem has a most 2 significant digits (ie 49) so the answer should be reduced to 2 significant digits also:

6.0 * 10^23

*BruceS*

## Comments

Solve what? You have an equality with no unknowns.