Latest HCL Aptitude Question SOLUTION: if a number cube is rolled once and a coin is tossed once. what is the probability that coin will show tails and composite number on on the cube

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(#M40038364) HCL Numerical Ability question probability Keep an EYE

if a number cube is rolled once and a coin is tossed once. what is the probability that coin will show tails and composite number on on the cube

Asked In HCL NAVISH KESHARI (9 years ago)

Unsolved Read Solution (17)

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Read Solution (17) :

chiranjib mohapatra  (9 years ago)

1/2 * 2/6 = 1/6

Is this solution Helpfull? Yes (25) | No (2)  

sweta singh  (9 years ago)

probability for coin show tail = 1/2.

probability for cube is = 2/6 =>1/3(composite no on cube is 4 and 6)

Is this solution Helpfull? Yes (9) | No (2)  

Hyndavi Reddy  (9 years ago)

The probability of getting tail when coin tossed is 1/2 and probability of getting composite number when cube is rolled is 2/6 since only 4 and 6 are composite now the question asked is combination of both so 1/2*2/6 = 1/6 is the answer

Is this solution Helpfull? Yes (6) | No (2)  

Dokkara praveen kumar  (9 years ago)

coin probability 1/2 ;for cube 3/6 (1,4,6 are composite) ans is=1/4

Is this solution Helpfull? Yes (4) | No (11)  

krishna9  (9 years ago)

Probability of getting tail = 1/2
Probability of getting composite number on a cube = 2/6 ( 4,6 are composite numbers)

so, probability of showing tail AND composite = 1/2 * 2/6 = 1/6

Is this solution Helpfull? Yes (2) | No   

CHEGIREDDY VENKATASUNILKUMARREDDY  (9 years ago)

probability for coin show tail = 1/2.

probability for cube is = 1/3 in that following as [H,H],[H,T],[T,H],[T,T] according this that tails shows have cube probability is =1/3.

Is this solution Helpfull? Yes (1) | No (5)  

monika jain  (9 years ago)

(1/2)+(1/3)=5/6 is right ans.

Is this solution Helpfull? Yes (1) | No (6)  

pravin agarwal  (9 years ago)

Number cubes contains 6 faces (1,2,3,4,5,6) in which composite numbers are(1,4,6).Composite number means the number which are not prime.
And for a coin there r two faces (H,T). So, if both of them will roll together then possibility of coming tail is 1 and for cube possibility of coming composite number is 3(1,4,6). So probability is
= 1*3/6*2
= 1/4

Is this solution Helpfull? Yes (1) | No (7)  

mithun bhaumik  (9 years ago)

2/6*1/2 + 1/2 * 2/6

Is this solution Helpfull? Yes (1) | No (1)  

shraddha agrawal  (9 years ago)

what is the correct answer of this question

Is this solution Helpfull? Yes (1) | No (1)  

keerthana chennamsetty  (9 years ago)

the answer is 1/6.

Is this solution Helpfull? Yes (1) | No   

pradeep  (9 years ago)

probability for coin show tails is = 1/2.

probability for cube is = 1/6.

Is this solution Helpfull? Yes | No (10)  

Sonali Ghadai  (9 years ago)

(1/2)*(3/6)=1/4
3/6=prob.for composite number on the cube

Is this solution Helpfull? Yes | No (6)  

PARICHAYA SHIT  (9 years ago)

total no of possible cases when both a cube rolled and a coin tossed = 12

no of possibe cases when the cube gives a composite no and the coin a tail = 2

the probability = 2/12= 1/6

Is this solution Helpfull? Yes | No (4)  

Nits  (9 years ago)

1/6 is the answer

Is this solution Helpfull? Yes | No   

lakshmiprasanna VELUGOTI  (8 years ago)

1/2*4/6 because 1,2,3,5 are composite numbers

Is this solution Helpfull? Yes | No (1)  

Harikrisha  (7 years ago)

composite numbers starts from 4,6,8,9,............,so prob of cube is 2 /6 and prob of getting tail is 1/2 so total prob is 1/2*2/6=1/6.

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