Comprehension Passage
Directions: The below bar graph shows information about the amount invested by the five persons A, B, C, D, and E for both simple and compound interest for 2 years respectively.
Note:
i) Rate of interest for the person A is 10%
ii) Rate of interest for all the person are not same
The below table shows information about the difference between the interest earned CI and SI for 2 years.
| Person | Difference between the interest earned for CI and SI |
| A | 120 |
| B | 216 |
| C | 405 |
| D | 409.6 |
| E | 51.2 |
If the rate of interest lent by person B is considered as ‘a’ and the rate of interest lent by person D is considered as ‘b’ then find the value of √ (a2 + b2).
1
40
2
10
3
20
4
25
5
30