Question
If two dice are thrown together, what is the probability
of getting an even number on one dice and an odd number on the other dice?Solution
Let E be the event of getting an even number on one die and an odd number on the other E = {( (1,2) (1,4) (1,6) (2,1) (2,3) (2,5) (3,2) (3,4) (3,6) (4,1) (4,3) (4,5) (5,2) (5,4) (5,6) (6,1) (6,3) (6,5)} So, n (E) = 18 n(E) / n(S) = 18/36 = ½.
12 man can make a wall in 6 days. How many men required to complete the same work in 3 days ?
A and B together, B and C together and A and C together can complete a piece of work in 44 days, 33 days and 36 days respectively. Find the ratio of the...
A can do a work in 10 days and B in 15 days. If they work on it together for 4 days then in how many days the remaining work will be completed by B?
A can complete a task in 10 days, and B can complete it in 15 days. After 3 days of working together, B leaves. How many more days will A take to finis...
Mike and Jenny alone can complete a task in 24 days and 40 days respectively. They aim to finish the work in 'd' days. What percentage increase in Jenny...
P can do a piece of work in 15 days, Q can complete double the work in 60 days and R can do the work in 40 days. If all of them together earn Rs. 3000, ...
3 men, 4 women and 5 boys can do a piece of work in 15 days, 20 days and 25 days respectively. For first 3 days 3 men and 2 women work together and for ...
‘A’ and ‘B’ can do a piece of work in 15 days and 20 days, respectively. They started working together but ‘A’ left after 3 days. Find the t...
A and B together can complete a work in 10 days. B and C together can do it in 12 days, and A and C together can do it in 15 days. In how many days will...
