Question
If the angular diameter of the sun is 20, how far from
the eye a coin of radius 4.95 cm be kept to hide the sun?Solution
Sushil’s present age is 1/2 times of her father’s age. After 13 years, father’s age will be 3 times the age of Sonu. If 3 years ago So...
‘A’ is 4 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 28 years and 20 years, respectively...
- The average age of Neha and her uncle at present is 40 years. Neha's age 5 years from now will be one-fourth of the present age of her uncle. What is the c...
The current age ratio of Akash to karan is 7:9, and the current age ratio of karan to Chetna is 3:5. If the average of their present ages is 62 years, d...
A student multiplied a number by 4/5 instead of 5/4. What is the percentage error in the calculation.
- The age ratio of 'P' and 'Q' 4 years ago was 7:6 respectively. 12 years from now, the ratio of their ages will be 11:10 respectively. What is the present a...
Sum of the present ages of A, B, C and D is 54 years. After 4 years ratio of their ages is 5:4:3:2. What is C’s present age?
Three years ago, the ratio between the ages of 'A' and 'B' was 4:5, and eight years from now, the ratio will be 6:7. If 'C' is 12 years older than 'A', ...
The current ages of A and B have a ratio of 7:9. Twelve years from now, B will be 12 years older than A. What will be the ratio of their ages in six years?
If the total ages of A and B is 6 years more than the total age of B and C. C is how many years younger than A?
