Question

A die is thrown 100 times.If the probability of getting an even number is 2/5.how many times an odd number is obtained?

Answer 1

Probability of getting an even number
= Probability of not getting odd no.
= 2/5

Probability of getting odd no.
= 1 - (2/5)
= 3/5

Probability = no. of favorable outcomes/total no. of outcomes

3/5 = no. of times odd number obtained/100

Number of times odd number obtained = 60
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Answer 2

3/5 *100 = 60 is the answer .