plzz answer the two questions no. 3 and 4 with explanation
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4)The smallest number by which 192 should be divided to make it perfect cube is 3.
3)135 Resolving 135 into Prime factors as follows Here, factor 5 is not in group of three ∴ The smallest number by which 135, should be divided
2)704=2×2×2×2×2×2×11
704=26×11
704 should be divided by 11 to make it a perfect cube.
Hence, the number obtained will be 64 which is the cube of 4.
1) the smallest number by which 81 should be divided is 3
81=3×3×3×3
4)L.C.M. of 5 and 2 gives the dimension of the cube to be formed.
L.C.M. of 5 and 2 is 10.
Volume of cuboid =5×5×2=50cm3
Volume of bigger cube = 103 =1000cm3
Number of cuboids required to make the bigger cube =
(Volume of a cuboid)(Volume of cube) = 501000 =20
Explanation : hope its helpful but 3 question I have answered from 4to 1just check it properly
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