ABC26GN1381 · Square Roots and Cube Roots

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: 2001 · Marks: · Difficulty:

$\sqrt{0.0169 \times ?}=1.3$

(a)10

(b)100

(c)1000

(d)None of these

Answer

Answer (as printed): B

Explanation

Let $\sqrt{0.0169 \times x}=1.3$. Then, $0.0169 x=(1.3)^{2}=1.69$ $$\Rightarrow x=\frac{1.69}{0.0169}=100 .$$

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