Question

verandah is 40m long and 15m broad it is to be paved with stones each measuring 60 cm and 5 cm find the numbers of bricks required​

Answer 1

Answer:

dimension of verandah = l= 15m, convert into cm 15×100cm=1500CM

and b= 40m , convert into centimetre = 40×100CM = 4000 cm

dimension of stone = l = 60cmb = 5cm

area of verandah = l×b

Area of verandah =1500×4000 area of verandah 600000cm²

area of stones = l × b

area of stone = 60×5

area of stone = 300cm²

number of bricks required = area of cylinder / area of stone

number of bricks required =600000/300

number of bricks required = 2000

therefore number of bricks required = 2000

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Answer 2

Answer:

20000 stones

Step-by-step explanation:

40 m=4000 cm

15 m=1500 cm

area of the verandah=4000*1500

               =6000000 sq. cm

area of the stone=60*5

=300 sq. cm

no. of stones required=6000000/300

=20000