Question
Solution
Use this formula- sin(A+B) = sinAcosB+cosAsinB sin(A–B) = sinAcosB – cosAsinB 
Neeta is 15 years older than Reena. Five years ago, the ratio of Neeta's age to Reena's age was 11:8. What is Neeta's current age?
The current ages of Raman and Raghav are in the ratio of 5:4. In six years, their ages will have a ratio of 11:9. What was the ratio of their ages ten y...
The ratio of A’s age to B’s age is 2 : 3. If 6 years are subtracted from each of their ages, the new ratio becomes 3 : 5. Find B'spresent age.
At present, the ratio of the ages of a father and his son is 5 : 1. After 8 years, the ratio of their ages will become 7 : 3. What is the present age of...
8 years ago, the average age of a family of six persons was 50 years. In between these 8 years the family adopted a girl. Now at present the average age...
- The combined present ages of Ramesh and Suresh amount to 68 years, while the sum of Ramesh and Vivek's current ages is 82 years. Additionally, in 10 years,...
The average age of A, B and C is 30 years, while the average age of B, A and D is 24 years. If the ratio of the age of C and D is 5:3, respectively, the...
The ratio of the ages of A and B is 4:5. 6 years ago, the ratio of their ages was 3:4. Find their present ages.
Six years ago, the ratio of ages of Alok and Ravi was 7:9, respectively. Eight years hence, the ratio of ages of Rohan and Ravi will be 5:6, respectivel...
- In a family, the mother is 3 years older than the father and four times as old as the son. If the sum of their present ages is 90 years, how many years lat...
Relevant for Exams:
