q no 5 fast .................................................
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volume of wall =800x600x22.5=10800000 cm cubed
volume of 1 brick = 25×6×11.25= 1687.5 cm cubed
by unitary method, no of bricks = volume of wall / volume of 1 brick
therefore 10800000/1687.5=6400
therefore no of bricks required are 6400
volume of 1 brick = 25×6×11.25= 1687.5 cm cubed
by unitary method, no of bricks = volume of wall / volume of 1 brick
therefore 10800000/1687.5=6400
therefore no of bricks required are 6400
rrrrr94:
book me ans 6400 hai
and your ans is 640
wrong hai kya
no
ok
yes i was wrong sry
but i had write in my copy
just add a zero in 1080000
make it last ke 5 zeroes
ok thanks
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hope it will help you thanks
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