# class 9 ## NCERT solutions for class 9 Maths chapter 15 Probability (Exercise 15.1)

NCERT solutions for class 9 Maths Probability Chapter 15 Exercise 15.1 Ex 15.1 Question 1. In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Solution: Total number… Read More »NCERT solutions for class 9 Maths chapter 15 Probability (Exercise 15.1) ## NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.4)

NCERT solutions for class 9 Maths Statistics Chapter 14 Exercise 14.4 Ex 14.4 Question 1. The following number of goals were scored by a team in a series of 10 matches 2, 3, 4, 5, 0, 1, 3, 3, 4, 3. Find the mean, median… Read More »NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.4) ## NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.3)

NCERT solutions for class 9 Maths Statistics Chapter 14 Exercise 14.3 Ex 14.3 Question 1. A survey conducted by an organisation for the cause of illness and death among the women between the ages 15-44 (in years) worldwide, found the following figures (in %) (i)… Read More »NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.3) ## NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.2)

NCERT solutions for class 9 Maths Statistics Chapter 14 Exercise 14.2 Ex 14.2 Question 1. The blood groups of 30 students of class VIII are recorded as follows A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB,… Read More »NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.2) ## NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.1)

NCERT solutions for class 9 Maths Statistics Chapter 14 Exercise 14.1 Ex 14.1 Question 1. Give five examples of data that you collect from your day-to-day life. Solution: Five examples  of data that we can collect from our day-to-day life : Number of boys students… Read More »NCERT solutions for class 9 Maths chapter 14 Statistics (Exercise 14.1) ## NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.8)

NCERT solutions for class 9 Maths Surface Areas and Volumes Chapter 13  Exercise 13.8 EX 13.8 QUESTION 1. Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 cm Solution: (i) Radius (r) = 7cm Volume of sphere = πr =… Read More »NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.8) ## NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.7)

NCERT solutions for class 9 Maths Surface Areas and Volumes Chapter 13  Exercise 13.7 EX 13.7 QUESTION 1. Find the volume of the right circular cone with (i) radius 6 cm, height 7 cm (ii) radius 3.5 cm, height 12 cm Solution: (i) Radius of… Read More »NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.7) ## NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.6)

NCERT solutions for class 9 Maths Surface Areas and Volumes Chapter 13  Exercise 13.6 EX 13.6 QUESTION 1. The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm. How many litres of water can it hold? (1000cm³… Read More »NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.6) ## NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.5)

NCERT solutions for class 9 Maths  Surface Areas and Volumes Chapter 13  Exercise 13.5 EX 13.5 QUESTION 1. A matchbox measures 4 cm x 2.5 cm x 1.5 cm. What will be the volume of a packet containing 12 such boxes? Solution: Matchbox is in… Read More »NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.5) ## NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.4)

NCERT solutions for class 9 Maths Surface Areas and Volumes Chapter 13  Exercise 13.4 EX 13.4 QUESTION 1. Find the surface area of a sphere of radius (i) 10.5 cm (ii) 5.6 cm (iii) 14 cm Solution: (i) Radius of sphere (r)= 10.5 cm Surface… Read More »NCERT solutions for class 9 Maths chapter 13 Surface Areas and Volumes (Exercise – 13.4)

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