Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

Two concentric circles of radii 19 and 11 cm are drawn on a paper. What is the area of the portion that is inside the outer circle but outside the inner circle?

### Question 2

The length and breadth of a rectangular area are in the ratio 5 : 3. What is the length of the field if a car travelling at 12 km/h covers one round of the rectangle in 320 minutes?

### Question 3

What is the area of the largest circle that can fit completely inside a square of side 14 meters?

### Question 4

A gun is fired towards a circular board consisting of two concentric circles of radii 12 and 3 cm. If each bullet is able to hit the board, what is the probability that it will strike the ring, i.e., the area between the inner and outer circles?

**A**

${15/16}$.

**B**

${5/7}$.

**C**

1/2.

**D**

${15/31}$.

**Soln.**

**Ans: a**

The area of the ring is equal to the difference of the areas of the two circles. π($12^2 - 3^2$) = 135π sq. cm. The total area is π × 12^{2} = 144π. The probability of hitting the ring is ${135π}/{144π}$ = ${15/16}$.

### Question 5

A largest possible circle is cut out of a square sheet having a side of 18 meter. What is the area of the hollow sheet?

### More Chapters | See All...

Alligations and Mixtures | Mirror Images | Clocks and Calendars | Percentages | Verification of truth | Bricks and Blocks | Course of Action | Inequalities | Essential Part | Blood Relations | More...

This Blog Post/Article "Areas Quiz Set 001" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-08-12.