Get Started with ixamBee
Start learning 50% faster. Sign in now
Get Started with ixamBee
Start learning 50% faster. Sign in nowTotal number of books = 10 + 7 + 7 = 24 Let S be the sample space. Then, n(S) = number of ways of drawing 3 books out of 24 = 24C3 = `(24 xx 23 xx 22)/ (3 xx 2 xx 1)` = 3036 Let E= event of drawing no green books n(E) = 17C3 = `(17 xx 16 xx 15)/(3 xx 2 xx 1)` = 680 `:.` P(E) = `(n(E))/(n(S))` = `680/3036` = `170/759`
The ratio of age of A and his son is 5:1. If the difference of their ages 6 years ago is 24, then find the sum of the ages of A and his son together 11 ...
The ratio of the current ages of ‘A’ and ‘B’ is 4:7, while the ratio of the current ages of ‘B’ and ‘C’ is 3:2. If the difference betwee...
The total age of A, B and C eight years hence will be 98 years. Find the age of C three years hence, if the present age of A and B is 30 years and 25 ye...
The average age of 26 smdents in a class is 15 years. If teacher's age is included in it, then the average will increase by one. What is the teacher's a...
Difference between the ages of A and B is same as the difference between the ages of B and C. The difference between the ages of A and C is 7 years. If ...
The ratio of the present ages of P and Q is 8:5 respectively. If the age of P 10 years hence from now will be 100% more than the age of Q 4 years ago fr...
When 11 years is subtracted from the present age of A and the obtained result is divided by 3, then the present age of his nephew is obtained. If the pr...
Amit age after 15 years will be 2 times his age 2 years back. What is the present age of Amit?
