Question

Solve this:

Q. Estimate the value of $\frac{19.96\times 5.03}{3.98}$correct to I significant figure. Use your answer from part (a) to estimate the value of ​$\frac{19.96\times 0.503}{398}$

Answer 1

$$\begin{gathered} DearStudent, \\ \frac{19.96*5.03}{3.98}=\frac{100.3988}{3.98} \\ theultiplicationmustbeuptothreesignificantfigure \\ =\frac{100}{3.98}=25.1256 \\ thedivisionmustbeupto3significantdigit \\ =25.1byroundoff \\ Regards \end{gathered}$$