SSC CGL 2019 PYQ — Question 9

SSC CGL Tier II Quant - 11/09/2019 • Quantitative Aptitude • Q9

If, then what will be the value of, correct to one decimal place.

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 ie 7.8

= (6 - 5√2)

= a = 6

= b = 5

= √61 = 7.8