Marconi discovered long radiowave in 1986. Ritter discovered UV rays. Newton discovered visible radiation. Henrik Hertz discovered short radiowave.
The present age of A is 7/5 times to that of his marriage age. Present age of his brother is 1/2nd of his present age. If A was married 20 years ago the...
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...
Five years ago, the ratio of the age of Tarun to that of Ayush was 6 : 11. Umesh is 10 years older than Tarun. Umesh is ten years younger than Ayush. Wh...
The present average age of Preti, Purnima and Payal is 24 years. If Purnima is five years younger to Payal and Preti is five years elder to Payal, then ...
A's age is 75% greater than B's age. The age difference between C and D is 24 years. The average age of A, B, C, and D is 60.75 y...
Shruti is currently 20% younger than Suhana. In four years, the age difference between them will change so that Suhana’s age will be to Shruti’s age...
The present age of Surjeet and Rakesh are in the ratio of 4:5. After 8 years the ratio of their ages will be 6:7. What is 70% of the sum of their presen...
The present ages of Vikas and Sneha are in the ratio 7:4, respectively. After 6 years from now, the sum of their ages will be 78 years. Find the present...
Before 8 years ago, the ratio of age of anil and Sunil is 5:7, after 6 years from now the ratio of their ages become 7:9, find the sum of present age of...
Currently, the ages of Vikesh and Vishal are in a ratio of 7:5. Vijay's age is 20% lower than Vishal's. If the average age of Vikesh, Vishal, and Vijay ...
