Question

Question 68

Anvi is making bookmarker like the one shown in the given figure. How many bookmarkers can she make from a 15 m long ribbon?

Answer 1

Height of one bookmarker$=10\frac{1}{2}cm$
$=\frac{(10\times 2)+1}{2}=\frac{21}{2}cm$
Length of ribbon = 15m = 1500 cm
$\therefore$ Number of bookmarker $=\frac{Lengthofribbon}{Heightofonebookmarker}$
$=\frac{1500}{\frac{21}{2}}=\frac{1500}{21}\times 2=142.85=142$