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Total number of bottles = 5 + 6 + 8 = 19 Let S be the sample space. Then, n(S) = number of ways of drawing 3 bottles out of 19 =19C3 = `(19 xx 18 xx 17)/ (3 xx 2 xx 1)` = 969 Let E = event of drawing e xactly two yellow bottles n(E) =6C2`xx` 13C1=`(6 xx 5)/(2 xx 1)` `xx` 13 = 195 `:.` P(E) = `(n(E))/(n(S))` = `195/969` = `65/323`
16 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:5, respectively. If ‘L’ is 9 years elder to ‘R’, then what will be the age of ...
The sum of the ages of a father and his son is 60 years. 15 years ago, the father was five times as old as the son. What is the present age of the father?
The current ages of Ashwin and Bhavin are in a 5:4 ratio. Ashwin's current age is 25% greater than Bhavin's. If the current average age of Ashwin, Bhavi...
B is 4 years older than A and A is 6 years older than C. If the sum of the age of A and C is 22 years, then find the sum of the ages of all three.
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 5 years younger than ‘A’, then find the sum of ...
The ages of A and B are in the ratio 5:7. If the sum of their ages is 72 years, what will be A's age after 6 years?
The ratio of age of A and his son is 9:5. If the difference of their ages 6 year ago is 12, then find the sum of ages of A and his son 15 year hence?
Sum of the present ages of A, B, C and D is 54 years. After 3 years ratio of their ages is 4:3:2:2. What is C’s present age?
Sum of the present ages of A, B, C and D is 56 years. After 3 years ratio of their ages is 7:6:5:2. What is C’s present age?
A is 3 years older than B while C is 5 years younger than B. The ratio of age of A, 6 years hence and age of B, 5 years ago is 4:3. What was age of C, 8...
