Answer Posted / subash chandran t

let us consider the concrete to be M25
Mix ratio- 1:1:2
total volume= 1 m3
volume of cement = (1/(1+1+2))x volume of cube = (1/4)x1
volume of cement = 0.25 m3
density of cement=1440 kg/m3
quantity of cement= 0.25x1440 =360kg

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