Area of the sector = (θ/360) × π × r2 [Where ‘θ’ is the angle subtended by the minor arc and ‘r’ is the radius of the circle] Desired area = (90/360) × (22/7) × 28 × 28 = 616 cm2
The ages of A, B and C together are 60 years. B is thrice as old as A and C is 5 years older than A. What is the difference between ages of B and C?
A lad was asked his age by his friend. The lad said “The number you get when you subtract 25 times my age from twice the square of my age will be thri...
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...
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 sum of the ages of two persons is 60 years. In 5 years, the ratio of their ages will be 4:5. Find their present ages.
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 age of Sahil and his son is 7:2. If the difference of their ages 7 year ago was 25, then find the sum of ages of Sahil and his son 12 year...
Present ages of 'P' and 'Q' are in ratio 5:6, respectively. If ten years hence from now, age of 'P' will be 25% less than that of 'Q', then find the rat...
The current ages of individuals 'A', 'B', and 'C' are in the proportion 7:2:3. Eight years prior, the average age of the three was 28 years. Determine t...
Currently, the ages of 'P' and 'Q' are in the ratio of 4:9. 'Y' years in the past, the ratio of their ages was 1:3. Three years from now, 'P' will be ha...
