Math, asked by muskansaxena1431, 1 year ago

find the number of bricks, each measuring 25 cm ×12.5 cm×7.5 cm, required to construct a wall 6m long, 5m high and 50 cm thick ,while the cement and the sand mixture occupies 1/20 th of the volune of the wall

Answers

Answered by shiva175
347
volume of wall=500×600×5=15000000 volume of mixture=15000000×1/20=750000 left wall volume =15000000_750000=14250000 required brick=14250000/25×12.5×7
5=6080
Answered by tanayshah397p9ynmj
410

Bricks                                    Wall

l=25 cm                                l=6 m =600 cm

b=12.5 cm                            b=50 cm

h=7.5 cm                              h=5 m =500 cm

volume of wall=l x b x h

                       =600 x 50 x 500

                       =15000000 cubic cm

volume of mixture =1/20 x 15000000

                              =750000 cubic cm

volume left =15000000 - 750000

                   =14250000 cubic cm

required brick =14250000/25 x 12.5 x 7.5

                        =6080 bricks

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