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Prakhar Shrivastava

INDUSTRIAL AND PRODUCTION | IIT B | NITIE | GATE - 2016 ( AIR -03, SCORE - 939/1000) |Tennis | Street plays | Foodie

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Vartik Thakur

7 months ago

hi sir please give courses for NDA 2 - 2019
WHICH VIDEOS TO BE SEEN

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Shreya singh

a year ago

could you please help me with this question?
A die is constructed so that a 1 or 2 occurs twice as often as a 5, which occurs three times as often as a 3, 4 or 6. If the die is tossed once, find the probability of: 1. the no. is even 2. the number is perfect square 3.the number is greater than 4.

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Prakhar Shrivastava

a year ago

Let prob of 3, 4, 6 = x
Prob of 5 = 3*x = 3x
Prob of 1, 2 = 2 * 3x = 6x
total faces = 18x = 6x + 6x + x + 3x + x + x
1. Even no probability = prob of (2 + 4 + 6) = 6x + x + x = 8x/18x = 4/9
2 perfect square = prob of (1 + 4) = 6x + x = 7x/18x = 7/18
3. Greater than 4 = prob (5 + 6) = 3x + x = 4x/18 = 2/9

Shreya singh

a year ago

ohkay...I got it where I was going wrong. Thank you .

Praful 27

a year ago

from where shoudl i practise probability and distribution sir as in bs grewal probability questions are not given .

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Prakhar Shrivastava

a year ago

Previous year GATE and IES questions

Praful 27

a year ago

Thanm u

Shivani Chaturvedi

2 years ago

Sir I am not able to find 30-40 questions per topic to practice ... what should i do ?

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Shivani Chaturvedi

2 years ago

As i am preparing by myself right now

Prakhar Shrivastava

2 years ago

Hi shivani,
Practice previous year questions, and then solve subjective questions from previous year IES paper, that would also do.
Thanks, for anything else please feel free and reach out to us

Shivani Chaturvedi

2 years ago

ok thanks