Question

how many square metre of Glass will be required for a window which has 12 pens each pain measuring 25 CM by 16 cm

Answer 1

our windows have panes instead of pens or pain

Now coming to solution, total required glass will be

=12x(0.25x0.16)
=0.48m sq

Answer 2

ANSWER

SQUARE METER OF GLASS REQUIRE FOR WINDOW WHICH HAS PANES=12

EACH PANES MEASURING 25CMby 16CM

12(0.25 MULTIPLE 0.16)=0.48m^2

HENCE SQUARE OF GLASS REQUIRE FOR WINDOW IS 0.48m^2