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Rahul makes a cuboid of plasticine of sides 3cm x 3cm x 5 cm. How many such cuboids will he need to form a cube? |
| Answer» SORRY if my english is bad, but here❤Step-by-step explanation:Side of CUBOID = 3*3*5Volume of the cuboid = 3*3*5=45cm³Let side of the required cube be x cmSo it's volume= x³ cm³Let n no. Of cuboid are neededSo n * 45 = x³Here n*45 must be a perfect cubeSo the minimum value that SATISFIED n to MAKE n*45 a perfect cube is 75i.e. 75*45 = 3375 = 15³So the required answer is 75 | |