probability class 10 extra questions (R.D. Sharma Level) Extra Practice Questions Probability (R.D. Sharma Level) 1. A card is drawn at random from a well-shuffled deck of 52 cards. Find the probability that the card drawn is (i) a face card or a spade (ii) neither a king nor a red queen. Total cards = … Read more
exercise 14.1 class 10 – Probability Exercise 14.1 Solutions Probability 1. Complete the following statements: (i) Probability of an event E + Probability of the event ‘not E’ = 1. (ii) The probability of an event that cannot happen is 0. Such an event is called an impossible event. (iii) The probability of an event … Read more
statistics class 10 extra questions (R.D. Sharma Level) Extra Practice Questions Statistics (R.D. Sharma Level) 1. The mean of the following frequency distribution is 50, but the frequencies f₁ and f₂ in class 20-40 and 60-80 are missing. Find the missing frequencies. Class 0-20 20-40 40-60 60-80 80-100 Total Frequency 17 f₁ 32 f₂ 19 … Read more
exercise 13.3 class 10 – Statistics Exercise 13.3 Solutions Statistics 1. The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them. First, we create a table with cumulative frequency to find the median, and other columns for … Read more
exercise 13.2 class 10 statistics Exercise 13.2 Solutions Statistics 1. The following table shows the ages of the patients admitted in a hospital during a year: Find the mode and the mean of the data given above. Compare and interpret the two measures of central tendency. Age (in years) 5-15 15-25 25-35 35-45 45-55 55-65 … Read more
class 10 maths chapter 13 exercise 13.1 – Statistics Exercise 13.1 Solutions Statistics 1. A survey was conducted… Find the mean number of plants per house. Number of plants 0-2 2-4 4-6 6-8 8-10 10-12 12-14 Number of houses 1 2 1 5 6 2 3 Which method did you use for finding the mean, … Read more
coordinate geometry class 10 extra questions (R.D. Sharma Level) Extra Practice Questions Coordinate Geometry (R.D. Sharma Level) 1. Determine the ratio in which the y-axis divides the line segment joining the points (5, –6) and (–1, –4). Also find the point of intersection. Let the ratio be k:1. Any point on the y-axis has coordinates … Read more
exercise 7.2 maths class 10 – Coordinate Geometry Exercise 7.2 Solutions Coordinate Geometry 1. Find the coordinates of the point which divides the join of (–1, 7) and (4, –3) in the ratio 2 : 3. Let the points be A(-1, 7) and B(4, -3). The ratio is m₁:m₂ = 2:3. Using the Section Formula: … Read more
class 10 maths chapter 7 exercise 7.1 – Coordinate Geometry Exercise 7.1 Solutions Coordinate Geometry 1. Find the distance between the following pairs of points: Using the Distance Formula: d = √[(x₂ – x₁)² + (y₂ – y₁)²] (i) (2, 3), (4, 1) d = √[(4 – 2)² + (1 – 3)²] = √[2² + … Read more
class 10th math exercise 11.1 extra question(R.D. Sharma Level) Extra Practice Questions Areas Related to Circles (R.D. Sharma Level) 1. The diameter of a car wheel is 70 cm. How many revolutions will it make to travel 1.65 km? Step 1: Find the circumference of the wheel. Diameter = 70 cm, Radius (r) = 35 … Read more