10th Class Mathematics 4th Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. CV is given by the formula:
   1. $$\frac{\text{SD}}{\text{range}} \times 100$$
   2. $$\frac{\text{mean}}{\text{SD}} \times 100$$
   3. $$\frac{\text{100}}{\text{mean}} \times SD$$
   4. $$\frac{\text{SD}}{\text{100}} \times \text { mean }$$
2. Angle subtended by an arc at centre of circle is called ………… angle.
   1. reflex
   2. inscribed
   3. straight
   4. central
3. Direct common tangents of equal circles are:
   1. parallel
   2. intersecting
   3. converging
   4. not parallel
4. Which of the following divides the data into two equal parts?
   1. decile
   2. quartile
   3. percentile
   4. median
5. Given that radius of a circle is 4 cm. The distance between two tangents drawn at the outer ends of diameter is:
   1. 2 cm
   2. 4 cm
   3. 6 cm
   4. 8 cm
6. Angle between tangent and radial segment of a circle is:
   1. 30°
   2. 45°
   3. 60°
   4. 90°
7. Probability of rolling a standard cubical dice for an even number in 2 attempts is —— than probability of rolling an odd number in 2 attempts.
   1. greater
   2. smaller
   3. equal
   4. no relation
8. If two tangents are drawn on both ends of diameter of a circle, they are:
   1. perpendicular
   2. parallel
   3. intersecting
   4. none
9. Centres and point of contact of two touching circles are:
   1. collinear
   2. non-collinear
   3. coincident
   4. none of these
10. Which of the following divides the data into ten equal parts?
    1. decile
    2. quartile
    3. percentile
    4. median
11. Central angle of major arc of a circle is:
    1. less than 90°
    2. less than 180°
    3. greater than 180°
    4. greater than 90°
12. In which type of triangle, incentre and circumcentre are coincident?
    1. scalene
    2. isosceles
    3. equilateral
    4. right triangle