Subject: General Aptitude · Chapter: Area · Exam: · Marks: · Difficulty:
The perimeter of a square is 48 cm. The area of a rectangle is 4 cm2 less than the area of the square. If the length of the rectangle is 14 cm, then its pe- rimeter is
(a)24 cm
(b)48 cm
(c)50 cm
(d)54 cm
Answer
Answer (as printed): B
Explanation
Side of the square = 12 cm Area of rectangle = [(12 × 12) – 4] cm2 = 140 cm2. Area 140 \ Breadth = = = 10 cm. Length 14 Hence, perimeter = 2(l + b) = 2 (14 + 10) cm = 48 cm.
Explanation as extracted from the printed page; notation may be imperfect.