10th Class Mathematics Solved Paper - Mathematics-2016 Outside Delhi Set-I

  • question_answer 29) A number x is selected at random from the numbers 1, 2, 3 and 4. Another number y is selected at random from the numbers 1, 4, 9 and 16. Find the probability that product of x and y is less than 16.

    Answer:

    Let x be 1, 2, 3 or 4
    and y be 1, 4, 9 or 16.
    Now, \[xy=\{1,4,9,16,2,8,18,32,3,12,27,48,4,16,36,64\}\]
    Total number of possible outcomes \[=16\]
    Number of outcomes where product is less than \[16=8\]
    i.e., \[\{1,4,9,2,8,3,12,4\}\]
    \[\therefore \] Required probability \[=\frac{8}{16}=\frac{1}{2}\]


adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos