The probability of guessing the correct answer to a certain question is x/2. If the probability of not guessing the correct answer to the question is 2/3, find the value of x.

Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg):

4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00

Find the probability that any of these bags chosen at random contains more than 5 kg of flour

The percentage of marks obtained by a student in monthly unit tests are given below :

Find the probability that the student gets :

(i)More than 70% marks

(ii) Less than 70% marks

(iii) A distinction.

A bag contains 4 white balls and some red balls. If the probability of drawing a red ball is 3/5, find the probability of drawing a white ball.

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