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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.
The ratio of the present ages of Ginni and Binni is 12:5 respectively. Ginni is ‘n’ years older than Binni. If after 6 years, the ratio of the ages ...
The ratio of Anil’s age to Anila’s age is 6 : 5 and the sum of their ages is 66 years. What will be the ratio of their ages after 14 years?
The ratio of Sohan’s age 6 years ago to Meera’s age 6 years hence is 3:7. If the average of their present ages is 50 years, what is the difference b...
12 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:5, respectively. If ‘L’ is 8 years elder to ‘R’, then what will be the age of ...
The ratio of the present ages of P and Q is 7:4 respectively. If the age of P 13 years hence from now will be 125% more than the age of Q 4 years ago fr...
K is as much younger than M as he is older than O. If the sum of the ages of M and O is 100 years, what is definitely the difference between M and K’s...
If 7 years is subtracted from the present age of Rohit and the remainder is divided by 13, then the present age of his grandson Amit is obtained. If Ami...
Present age of ‘A’ is 40% more than that of ‘B’. If 10 years hence from now, ‘B’ will be 4 years younger than ‘A’, then find the sum of ...
7 years ago, Meera’s age was equal to the Heena’s present age. The sum of Meera’s age 10 years from now and Heena’s age 5 years ago is 94 yea...
8 years ago, the average age of a family of six persons was 50 years. In between these 8 years the family adopted a girl. Now at present the average age...