Question

which of the following is a perfect cube ? (a)10000 (b)243 (c)343 (d)270000​

Answer 1

Answer:

Step-by-step explanation:

C) 343.

As 343 is cube of 7.

Answer 2

Given :   Different Numbers

(a)10000 (b)243 (c)343 (d)270000​

To Find : Which is perfect cube number

Solution:

10000 = 10 * 10 * 10 * 10  = 10³ * 10

Hence not a perfect cube

243  = 3 * 3 * 3 * 3 * 3  = 3³ * 3²

Hence not a perfect cube

343 = 7 * 7 * 7  = 7³

Hence 343 is a perfect cube

270000 = 3 * 3 * 3 * 10 * 10 * 10 * 10   = 3³ * 10³ * 10

Hence not a perfect cube

343  is Perfect cube

option c)  is correct

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