ABC26GN1350 · Square Roots and Cube Roots

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: 2010 · Marks: · Difficulty:

( 81)  = (?) 2 the square root is taken. The result of the square (Specialist Officers, 2006) root is Q. What is the value of Q?

(a)8 3R

(b)9 4R

(c)4096 7R

(d)6561 9R

(e)None of these

Answer

Answer (as printed): E

Explanation

Let [( 81) ] = x2. Then, x2 = (81)2 or x = 81. 24. 1 1 58 76 (126 1 22 58 44 246 14 76 14 76 × \ 15876 = 126. 25. 1 3 . 00 00 00 (1.732 1 27 2 00 1 89 343 11 00 10 29 3492 71 00 69 84 173 1 16 ∴ 3 = 1.73 = . 100

Explanation as extracted from the printed page; notation may be imperfect.

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