M4maths Previous Puzzles

20 Jun 2018 Probability

An alphanumeric character is randomly selected from following sentence:
"Everybody is a genius.

But if you judge a fish by its ability to climb a tree,

it will live its whole life believing that it is stupid."

What is the probability that picked character is one of the following letters K or I or T or Y?
Note: Alphanumeric character means alphabet or number. Space and other characters should be ignored.

OPtion

1) 33/105
2) 32/103
3) 34/103
4) 34/104
5) 32/102
6) 31/104
7) 33/103
8) 34/105
9) 32/105
10) None of these

Solution

Sentence = "Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid."


Total number of alphanumeric character in the sentence = 105
Total Number of K = 0, I = 18, T= 11, Y =5
Total = 34

Probability = (34)/105
Option 8)

Correct Option: 8 Best Solution (5)

G.S.Kantharao   6 years AGO

Total letters =105
No of k,i,t or y=0,18,11,5=34
Probability=34/105
My option is 8👈

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Mukund Manohar   6 years AGO

Probability for K = 0/105
Probability for I = 18/105
Probability for T = 11/105
Probability for Y = 5/105
Required Probability = 0/105 + 18/105 + 11/105 + 5/105 = 34/105

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Varun   6 years AGO

Probability = Feasible number of cases/Total cases
Here,
No. of K, I, T, Y are 0,18,11, 5 respectively,
which counts to 34
And total number of letters = 105

So, probability = 34/105

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Sangeetha S   6 years AGO

Total number of alphanumeric character in the sentence = 105
Total Number of K=0
Total number of I=18
Total Number of T=11
Total Number of Y=5
Total = 34
Probability = 34/105

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Vishnuvarthini K   6 years AGO

Total number of alpha numeric characters=105
Total number of k=0 i=18 t=11 y=5
Therefore probability of getting k or i or t or y=34/150

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