## Aptitude Square Roots and Cube Roots Test Paper 311) The number which is not expressible as the square of any natural number is - 1369
- 5041
- 7056
- 9852
We have 1369 = 37 5041 = 71 7056 = 84 9852 = (99.2) All of the numbers are perfect square except the option D. 12) What is the smallest number to be subtracted from 549162 in order to make it a perfect square? - 28
- 36
- 62
- 81
Hence the smallest number to be subtracted is 81 to make the number a perfect square. 13) The smallest number which when multiplied to 3600 yields perfect cube is - 50
- 60
- 40
- 100
∴ 3600 = 2 × 2 × 2 × 2 × 5 × 5 × 3 × 3 = 2 ∴ 3600 must be multiplied by 60 to make it perfect cube. 14) If 2*3 = √13 and 3*4 = 5, what is the value of 5*12? - 12
- 13
From the above relation it is clear that 15) The value of is - 25
- 125
- 3
- None of these.
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