Question

In rolling a dice,the probability of getting a number less than 4 is_____
(class 10 CBSE SAMPLE PAPER 2017-18 MATHS)

Answer 1

A die has 6 faces marked as 1 ,2, 3 ,4, 5 and 6.


In case of 1 die, possible outcomes are 1,2, 3, 4, 5, 6.


Total number of outcomes=6


Let E be the event of getting a number less than 4.


Favourable outcomes to the event E are= 1,2,3

So the  number of favourable outcomes= 3


P (E) = number of favourable outcomes/ total number of outcomes


P(E)= 3/6


P(E) = ½


Hence, the probability of getting a number less than 4 is ½.


Hope this will help you.....

Answer 2

The probability is 3/6=1/2