Aman walked for 1/3 hour and then got an automobile ride for 1/2 hour. what part of time consumed he ride on automobile
(a) 1/3
(b) 3/5
(c) 5/6

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?