Who discovered the cell in 1665?
Robert Hooke is credited with the discovery of the cell in 1665, marking a pivotal development in the field of cytology.
Present ages of Ram and Raj are in the ratio 6:7, respectively. The ratio of their ages after 12 years will be 9:10. The difference between the ages of ...
A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
My sister is 5 years elder to me. My father was 30 years of age when my brother was born while my mother was 28 years of age when I was born. If my bro...
In a classroom there are 12 boys and 10 girls. Average age of each boy and each girl is 22 years and 18 years respectively. The sum of ages of all the b...
At present Meena is eight times her daughter’s age. Eight years from now, the ratio of the ages of Meena and her daughter will be 9 : 2 respective...
The ratio of the present ages of P and Q is 8:5 respectively. If the age of P 14 years hence from now will be 100% 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...
The ratio of the present ages of Naresh and Supara is 7: 3. Three years from now, the ratio of their ages will be 2 : 1. The current age of Naresh is___...
Five years ago, the average age of a family of four members was 25 years. Six years hence, the ratio of their ages will be 9:7:5:3. Find the a...
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...
