Question

in a stack there are 5 books each of thickness 20mm and 5 paper sheets each of thickness 0.016mm what is the total thickness of the stack​

Answer 1

Step-by-step explanation:

thickness of book = 20 mm

number of books = 5

thickness of 5 books = 20 × 5 = 100 mm

thickness of paper sheet = 0.016 mm

number of paper sheet = 5

thickness of 5 paper sheet = 0.016 × 5 = 0.08 mm

total thickness of stack

= 100 + 0.08

= 100.08 mm

hope you get your answer

Answer 2

$\rm{Total \: number \: of \: books \: in \: the \: stack \: = \sf \purple{5}}$

$\rm{thickness = \sf \purple{20mm}}$

$\rm{Total \: thickness \: of \: the \: books = \sf \purple{20×5=100}}$

$\rm{Total \: number \: of \: paper =\sf \purple{5}}$

$\rm{thickness \: of \: the \: paper =\sf \purple{0.016mm}}$

$\rm\footnotesize{Total \: thickness \: of \: the \: paper \: \sf \purple{=5×0.016=0.080}}$

$\rm \blue{Total \: thickness \: of \: the \: stack = }$

$\fcolorbox{purple}{pink}{=100+0.080=100.080=1.0008×10² mm}$