৪৬. If (89)2 is added to the square of a number, the answer so obtained is 16292. what is the 126 of that number?
A
5.65
B
2.70
C
3.50
D
6.66
Correct Answer: 3.50
ATQ, (89)2 + x2 = 16202 Or, x2 = 16202 – (89)2 = 16202 – 7921 = 8281 .::x = √(8281) = ±91 Now, 1/26 of 91 = 3.50 ans: 3.50