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Start learning 50% faster. Sign in nowThe discovery of the proton is credited to Ernest Rutherford, who proved that the nucleus of the hydrogen atom (i.e. a proton) is present in the nuclei of all other atoms in the year 1917.
The ratio of age of ‘B’ after 6 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 40% of th...
There are 3 children in a family. The average age of the children is 16 years. If the present age of their mother and father is added, the average age o...
My father is presently 25 years older than me. The sum of our ages 5 years ago was 39 years. Find my present age.
Present ages of P and Q are in the ratio 2:7 respectively. If Q’s age, 15 years hence from now will be 6 times of P’s age, 5 years ago from now, the...
The present age of Neha's father is four years more than six times Neha's present age. If Neha's mother is eight years younger than her father and the r...
10 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:8, respectively. If ‘L’ is 7 years elder to ‘R’, then what will be the age of ...
The ratio of A's age to B's age after 18 years will be 5:6. Seven years ago, the ratio of their ages was 5:7. Find the present average age of A and B.
The ratio of age of ‘B’ after 6 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 40% of th...
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 ...
