Find the best tutors and institutes for Class 10 Tuition

Find Best Class 10 Tuition

Please select a Category.

Please select a Locality.

No matching category found.

No matching Locality found.

Outside India?

Search for topics

A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being not a blue ball.

Asked by Last Modified  

CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition

Follow 7

6 Answers

Please enter your answer


Total ball is 22. probability of 1 balls is drawn of 22 balls = 22c1 probability of no blue ball = 10c1+7c1/22c1 Ans is 17/22 Thank you.


There are 22 balls in all. There are 5 blue balls. So probability of drawing a blue ball is 5/22 Hence the probability of not drawing a blue ball is 1-5/22 = 17/22 Ans



Given that- as 1 ball is drawn from 22 balls then ways to drawn a ball =22C1=22 ways to drawn a blue ball =5C1=5 probability to drawn 1 blue ball =P= 5/22 probability to drawn not to blue ball =1-P=1- 5/22 =17/22. Ans will 17/22 Think... read more
Given that- as 1 ball is drawn from 22 balls then ways to drawn a ball =22C1=22 ways to drawn a blue ball =5C1=5 probability to drawn 1 blue ball =P= 5/22 probability to drawn not to blue ball =1-P=1- 5/22 =17/22. Ans will 17/22 Think u understood ... read less

Mathematics Teacher

P (getting not a blue ball) = total balls except blue ball/total no. of balls. = 17/22.

Knowledge Builder


View 4 more Answers

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on

Ask a Question

Related Lessons

Equation of the median of a triangle with coordinates A ( 5 -4 ) , B (2 , 5 ) and C (4 ,-1 ) passing through vertex A.
Median from vertex A bisects the opposite side B C. Let D be the mid point of BC. Coordinates of D ( 3 , 2) Using two point formula of straight line, we can find the equation of the median. A (5 ,-4...

B.Sudhakar | 16 Mar

2 0

Basics question for today
Can u tell why factorial 0 and factorial 1 has same value as 1?

Vikas K. | 20 Feb

0 0

Tips To Score Excellent Marks In Maths
Hello students. Some tips for you all to score excellent marks in Maths: (1) Do not mug up sums and Theorems. Try to understand the concept. (2) Memorise all formulas and identities well. (3) Understand...

Deval T. | 08 Jan

0 0

Recommended Articles

Board exams are an integral part of a student s life. It prepares them for the future and strengthens their observation. Besides, boards exams also teach students valuable traits like time management, punctuality, determination, self-control and perseverance. We at UrbanPro, understand the importance of exams in a student...

Read full article >

Class 10 is the first external exam in a student s life. It decides the admission process in future, as almost all colleges and universities grant a seat based on Class 10th marks, as one of the criteria. For students who plan to opt for science as their stream in higher classes, it is essential that they begin preparation...

Read full article >

Social science is a subject that requires a student to deal with facts about human behaviour in its social and cultural aspects. Unlike mathematics, science and geography, that test a student s problem-solving or analytical skills, social science are mainly about dates, terminology, battles, treaties and policies. Class...

Read full article >

Like Mathematics and Science, Hindi is also an essential part of the class 10 syllabus, which requires regular and sufficient preparation. Many students might mistake this subject to be an easy one and give less importance. If you want to score good percentage, remember that marks obtained in Hindi will also matter. They...

Read full article >

Looking for Class 10 Tuition ?

Find best Class 10 Tuition in your locality on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Find Best Class 10 Tuition ?

Find Now » is India's largest network of most trusted tutors and institutes. Over 25 lakh students rely on, to fulfill their learning requirements across 1,000+ categories. Using, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 6.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more