Question

If the thickness of a pile of 16 cardboards is 44 mm, how many cardboards will be there in a pile which is 71.5 cm thick?

Answer 1

Number of cardboards in a pile of thickness 44 mm = 16
Number of cardboards in a pile of thickness 1 mm = $\frac{16}{44}$
Number of cardboards in a pile of thickness 71.5 cm = $\frac{16}{44}\times 71.5\times 10$ = 260 [1 cm=10 mm]
∴ 260 cardboards will be there in a pile of thickness 71.5 cm.