ABC26GN1377 · Square Roots and Cube Roots

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

$28 \sqrt{?}+1426=\frac{3}{4}$ of 2872
(a)576
(b)676
(c)1296
(d)1444
Answer
Answer (as printed): B
Explanation
Let $28 \sqrt{x}+1426=3 \times 718$. Then, $28 \sqrt{x}=2154-1426 \Leftrightarrow 28 \sqrt{x}=728 \Leftrightarrow \sqrt{x}=26$ $$\Leftrightarrow x=(26)^{2}=676 .$$

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

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