Question

a tailor uses 3m10cm of cloth to stitch one coat. how mucj cloth does he require to stitch 4such coats

Answer 1

Cloth used for One coat by tailor =3m10 cm
=3×100+10cm
=310cm

Cloth required to stitch 4 coats = 4×310
=1240
=1200+40
=12×100+40
=12m40cm

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Answer 2

3m =300cm.
So tailor requires 310cm cloth to stitch one coat. So to stitch 4 coats,
Cloth(cm). Coats
310. 1
? 4

Cloth = 310*4 = 1240cm

Hence cloth in meter is 1240/100 = 12.4 i.e 12m40cm