Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 10)
10.
| If 5 = 2.236, then the value of | 5 | - | 10 | + 125 is equal to: |
| 2 | 5 |
Answer: Option
Explanation:
| 5 | - | 10 | + 125 | = | (5)2 - 20 + 25 x 55 |
| 2 | 5 | 25 |
| = | 5 - 20 + 50 |
| 25 |
| = | 35 | x | 5 |
| 25 | 5 |
| = | 355 |
| 10 |
| = | 7 x 2.236 |
| 2 |
| = 7 x 1.118 |
| = 7.826 |
Discussion:
11 comments Page 2 of 2.
Mannoj kumar said:
1 decade ago
Another method
=sq5[ 1/2 - 10/5+ 5]
=2.236[ 0.5 -2 + 5]
=2.236 * 3.5
=7.82600
=sq5[ 1/2 - 10/5+ 5]
=2.236[ 0.5 -2 + 5]
=2.236 * 3.5
=7.82600
(1)
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