(b) 100. Explanation: Let √(0.0169 × x)=1.3. Then, 0.0169 x=(1.3)²=1.69 ⇒ x=1.69/0.0169=100.

√(0.0169 × ?)=1.3 · ABC26GN1381

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: Hotel Management 2001

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

(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.

Study loop for Square Roots and Cube Roots