Question : The difference between the circumferences of the two circles is 4.4 cm and the radius of the smaller circle is 1.4 cm. The radius of the larger circle is:
Option 1: 4.1 cm
Option 2: 0.7 cm
Option 3: 2.1 cm
Option 4: 3.5 cm
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 2.1 cm
Solution : The circumference of a circle is given by the formula $C = 2\pi r$, where $r$ is the radius of the circle. Let $R$ be the radius of the larger circle. According to the question, $2\pi R - 2\pi (1.4) = 4.4$ $⇒2\pi (R - 1.4) = 4.4$ $⇒ R - 1.4 = 0.7$ $⇒ R = 2.1$ Hence, the correct answer is 2.1 cm.
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Question : If the circumference of a circle is 13.2 cm, then what is its radius?
Option 1: 1.7 cm
Option 2: 6 cm
Option 3: 21 cm
Option 4: 2.1 cm
Question : The sum of the lengths of the radius and the diameter of a circle is 84 cm. What is the difference between the lengths of the circumference and the radius of this circle? [Use $\pi=\frac{22}{7}$]
Option 1: 156 cm
Option 2: 172 cm
Option 3: 148 cm
Option 4: 128 cm
Question : The diameter of a circle is 42 cm. What is the difference between the lengths of the circumference and the radius of the circle? [Use $\left.\pi=\frac{22}{7}\right]$
Option 1: 98 cm
Option 2: 94 cm
Option 3: 111 cm
Option 4: 105 cm
Question : A wire is in the form of square with side 44 cm. It is bent to form a circle. What is the radius of the circle?
Option 1: 28 cm
Option 2: 21 cm
Option 3: 16 cm
Option 4: 32 cm
Question : The area of a circle is 1386 cm2. What is the radius of the circle? [Use $\pi=\frac{22}{7}$ ]
Option 1: 21 cm
Option 2: 7 cm
Option 3: 14 cm
Option 4: 18 cm
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile