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Harpreet tosses two different coins simultaneously (say, one is of ₹ 1 and other of ₹ 2). What is the probability that she gets at least one head?

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14

35

34

29

answer is C.

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Detailed Solution

Given that Harpreet tosses two coins simultaneously.
We need to find the probability that she gets at least one head.
Probability of an event E is defined as:

P (E) = \frac{Number of favorable outcomes}{Total number of possible outcomes}

The possible outcomes are:

(H H), (H T), (T H), (T T)

The total number of posible outcomes is 4.
According to question, favorable outcomes is to receive at least one head are:

(H H), (H T), (T H)

Hence, the total number of favorable outcomes is 3.
Let

E

be the event that at least 1 head is received while tossing two coins.
Now, the probability of receiving at least 1 head is:

P E = 34

The probability of getting at least one head is

34

.
Therefore, option 3 is correct.

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