Probability - Shortcuts & Tricks for Placement Tests, Job Interviews & Exams

Crack the quantitative aptitude section of Placement Test or Job Interview at any company with shortcuts & tricks on Probability. Extremely helpful to crack entrance exams like MBA, Banking – IBPS, SBI, UPSC, SSC, Railways etc.

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0:00 Quantitative Aptitude
1:25 EASY Formula
9:58 Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3 socks randomly. Find the possibility of Suresh choosing a matching pair?
13:02 What will be the possibility of drawing a jack or a spade from a well shuffled standard deck of 52 playing cards?
18:16 A box has 6 black, 4 red, 2 white and 3 blue shirts. When 2 shirts are picked randomly, what is the probability that either
22:52 A pot has 2 white, 6 black, 4 grey and 8 green balls. If one ball is picked randomly from the pot, what is the probability of it being
24:15 There are 2 pots. One pot has 5 red and 3 green marbles. Other has 4 red and 2 green marbles. What is the probability of drawing
29:15 In a set of 30 game cards, 17 are white and rest are green. 4 white and 5 green are marked IMPORTANT. If a card is chosen randomly from this set, what is the possibility of choosing a green card or an 'IMPORTANT card?
32:20 A box has 6 black, 4 red, 2 white and 3 blue shirts. Find the probability of drawing 2 black shirts if they are picked randomly?
33:37 A box has 6 black, 4 red, 2 white and 3 blue shirts. What is the probability that 2 red shirts and 1 blue shirt get chosen during a random selection of 3 shirts from the box?
44:04 On rolling a dice 2 times, the sum of 2 numbers that appear on the uppermost face is 8. What is the probability that the first throw of dice yields 4?
46:25 A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black and 5 green shirts. Now a shirt is picked from second box. What is the
51:10 What is the possibility of having 53 Thursdays in a non-leap year?
52:47 In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that
55:24 What is probability of drawing two clubs from a well shuffled
56:44 What are the chances that no two boys are sitting together

[huseynhasanov]

Indian guys on youtube are better than professors in my university.

[tejaswinikasinadhuni]

i just like the way how he says "easy" before starting every problem
PS:- I got placed in 2 top MNCs... thanks and credits to careerride!

[chaitanyashejwal]

I was so afraid of starting probability because none of my answers used to match. After attending this session I have started getting those right. Thank you for the amazing lecture. Also starting every problem by saying "easy" helped me a lot. :p

[snehaljituri]

Thank you soo much for your videos Sir, they helped me a lot... I have been placed at Infosys!😀

[rahulbambhaniya]

For 15 que sir we can easily take
P of sitting boys together+ p of not sitting together =1
2/7+ NP=1
NP=1-2/7
NP=5/7

[sawandeepgavel]

Q would be 1/5 instead of 1/36 coz the sample space would shrink due to the given condition

[debajyotidey]

This video is really helpful for the students of campus placements, after watching this video i realize that probability is not that much tuff what I though about this, the way of teaching is also excellent, nicely explained .

[jatinlakhani]

This is one of the best you tube channel for learning of aptitude in best way. It's very fruitful for those who seeks to learn aptitude in easy way.

[ndharani]

I want to say thanks for career ride .I don't know about aptitude and reasoning but career ride helped me in gaining knowledge.there videos are crystal clear.please make some more videos on aptitude.thank you

[nikhiljagtap]

Question 15) you can just use P = Np - 1, where Np is the probability of two boys sitting together which is 2/7.

[saivamshikrishnabitling]

we have many videos in You Tube for Quantitative Aptitude and Logical Reasoning, I was Confused what to watch and Learn. But "CareerRide" is the BEST video Tutorials, I have found in You Tube to quick revise and all the tips and tricks, very useful in making me successful in learning without ambiguity in the concepts, by covering all the concepts. Thank you so much sir..!!

This is just because of the clarity in teaching the Questions well and covering all the important questions which comes in the placements and other competitive Exams

[yatendraupadhyay]

The correct answer for question no 10 is 1/5 .
Since it's already given that sum is 8 so our sample space is (6, 2), (5, 3) (4, 4) (3, 5) ( 2, 6) .
Hence favourable / total = 1 / 5

[manaskhandekar]

For the 15th sum, I just did
P = (G, G) OR (B, G) for two consecutive positions...
P = [ (5/7) × (4/6) ] + [ (2/7) × (5/6) ]
P = 5/7

[rohangoswami]

This guy knows what's up. He just needs to learn how to articulate and convey his thoughts effectively and efficiently. Keep it up!

[kirankumarchirravuri]

Great class sir.. everything is commendable, the way you are explaining, the sums you have taken..all are good. Highlight of the class is that you haven't used any formula to solve even a single sum that is what attracted me more..

[pavanimasanam]

you have made everything so clear. May god bless you

[venuvenu]

😃Sir actually I am preparing for a complicative exam.🙂 your every video is helping me me to study 📚✏more
And I don't like maths before after when I started 👀seeing your videos I really like maths more than any other subject now ☺ can u do some videos 🎥 like this
Rational exponents and radicals, Alergic expression and identites, Liner equation in one variable, Factorisation, Simple interest and componed interst, Geometry, Mensuration, Statistics and data representation please 😄

[shoebmoin]

46:13 the answer is 1/5 and not 1/36 since it is already given that the sum of the faces of dices is 8 we should not consider all 36 possibilities

[dishantkumbhar]

Sir ur lec. Are great helping all student community.
Sir plz add mensuration, case puzzles, data sufficiency, odd one out, flow chart, etc this will further help us sir.
Thank you for great session.

[akankshaberry]

I am loving you for increasing my probability to love Probability!