The circumferences of two concentric circles are 176 m and 132 cm respectively. What is the difference between their radii?

Related Mcqs:

1. The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles.

   A. 4192 sq m
   B. 4304 sq m
   C. 4312 sq m
   D. 4360 sq m

2. The difference between the radi of the smaller circle and the bigger circle is 7cm and the difference between the area of two circles is 1078Sq.cm Radius of the smaller circle is_________?

   A. 17.5cm
   B. 21cm
   C. 28cm
   D. None of these

3. A paper is in a square form whose one side is 20 cm. Two semi circles are drawn on its opposites as diameters. If these semi circles are cut down what is the area of the remaining paper?

   A. (400 – 100π) cm^2</sup
   B. (400 – 2π) cm^{2</sup
   C. (400 – 200π) cm2</sup
   D. 200π cm2</sup}

4. There are two circles of different radii. The area of a square is 196 sq.cm, whose side is half the radius of the larger circle. The radius of the smaller circle is three-seventh that of the larger circle. What is the circumference of the smaller circle ?

   A. 12 π cm
   B. 16 π cm
   C. 24 π cm
   D. 32 π cm

5. The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes?

   A. 27:1
   B. 1:27
   C. 1:9
   D. 9:1

6. (22 * 495 + 891 * 44) / (33 * 176 + 55 * 264) = _________?

   A. 1
   B. 2
   C. 69/28
   D. 66/17

7. P and Q started a business investing Rs. 85,000 and Rs. 15,000 respectively. In what ratio the profit earned after 2 years be divided between P and Q respectively?

   A. 3:4
   B. 3:5
   C. 15:23
   D. 17:23
   E. None of these

8. The ratio of the radius of two circles is 1: 3, and then the ratio of their areas is_________?

   A. 1:3
   B. 1:6
   C. 1:9
   D. 1:5

9. What is the principle amount which earns Rs.132 as compound interest for the second year at 10 % per annum?

   A. Rs. 1000
   B. Rs. 1200
   C. Rs. 1320
   D. None of these

10. What is the present worth of Rs. 132 due in 2 years at 5% simple interest per annum ?

    A. Rs. 112
    B. Rs. 118.80
    C. Rs. 120
    D. Rs. 122