Question
Which Acid is known as ‘Oil of
Vitriol’?Solution
The correct answer is D
The average age of 26 smdents in a class is 15 years. If teacher's age is included in it, then the average will increase by one. What is the teacher's a...
- The ratio of the ages of a teacher and a student is 5:2, respectively. If the difference between their ages is 18 years, then find the age of the student.
The present ages of a father and his son are in the ratio 7 : 3. After 10 years, the ratio of their ages will become 9 : 5. What is the present age of t...
- Four years later, the total of the ages of 'John' and 'Michael' will be 70 years. Ten years ago, John was 8 years younger than Michael. What will be Michae...
Ratio of ages of A and B, after 10 years will be 9:5, respectively. Present average age of A, B and C is 22 years. If present age of C is 50% more than ...
The present ages of ‘R’ and ‘S’ are in the ratio 2:3. Five years later, the ratio of their ages will be 3:4. What was the age of ‘R’ 6 years...
Present ages of Arjun and Bhavesh are in the ratio of 5:7 respectively. Present age of Chandan is 25% more than the age of Bhavesh six years ago. Presen...
The present average age of Sana and Dev is 30 years. After 4 years, their ages will be in the ratio 8:9. Find Dev’s age 7 years ago.
The present ages of P and Q are in the ratio 7 : 5. After 6 years, the ratio of their ages will be 9 : 7. What is the present age of Q?
The total age of A, B and C seven years hence will be 85 years. Find the age of C seven years hence, if the present age of A and B is 30 years and 22 ye...
