Question
Two unbiased dice are rolled. What is the probability
that the first die shows a composite number and the second die shows a prime number?Solution
Sample space for the first die = {4, 6}
Sample space for the second die = {2, 3, 5}
Required probability = 2/6 × 3/6 = 1/6
If '+' means 'division', ' X ' means 'addition', ' - ' means 'multiplication' and '÷' means 'subtraction', then what is the value of the following expr...
How many meaningful four-letter words can be formed using the 1st, 3rd, 7th, and 8th letters of the word 'PERIPHERAL'?
'!' means '÷', '$' means ' X ', '#' means '+' and '&' means '-' then what would be the value of the expression given below?
Expression: 63 $ ...
If P denotes ‘multiplied by’, T denotes ‘subtracted from’, M denotes ‘added to’ and B denotes ‘divided by’, then 50 B 5 P 16 T 15 M 13 ...
If '+' means 'subtraction', ' X ' means 'addition', '-' means 'division' and '÷' means 'multiplication', then what is the value of the following expres...
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
12* 6 * 3 * 54 * 9 * 12
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
121 × ...
If 'P' means 'division', 'Q' means 'subtraction', 'R' means 'addition', and 'S' means 'multiplication', then what is the value of the expression:
...If '+' means '÷', '-' means ' X ', ' X ' means '+', '÷' means '-', what will come in place of the question mark(?)?
34 X 272 + 34 - 8 ÷ 25 = ?...
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
