Question

if the thickness of a pile of 12cardboard is35mm,find the thickness of a pile of 294 cardboard

Answer 1

12 cardboard= 35 mm
1 cardboard =35/12 mm
:- 294 cardboards = 35/12 ×294
= 857.5 mm

Answer 2

for 12 cardboards thickness is 35 mm
for 294 cardboards = ?

by cross multiplication

(294 × 35)/12

10290/12

857.5 mm

hope this helps you