Question
What is the effect on a ship’s buoyancy when it moves
from a river to the sea?Solution
When a ship moves from a river to the sea, it experiences increased buoyancy due to the higher density of saltwater compared to freshwater. This increased buoyancy causes the ship to rise slightly in the water.
The average ages of A, B and C is 20% more than the average ages of A and B. 10years hence from now, the ratio of the ages of A and C will be 3:5, respe...
Present age of ‘A’ is 50% more than that of ‘B’. If 20 years hence from now, ‘B’ will be 16 years younger than ‘A’, then find the sum of...
Amit age after 15 years will be 3 times his age 3 years back. What is the present age of Amit?
‘A’ is 8 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 30 years and 20 years, respectively...
- The age ratio of Kiran and Meena 3 years ago was 3:4. In 9 years from now, the ratio of their ages will be 5:6. What is the present age of Meena?
Present average of age of A and B is (9x-15) years. Present average age of A, B and C is (6x+5) years. If present age of B is 20% less than the present ...
Ratio of present ages of A and B is 3:5, respectively. C who is 5 years older than A will become 35 years older after 12 years. Find the present age of B.
- Priya and Neha are currently aged in the ratio 9:7. If Priya’s age 6 years ago equals Neha’s age 2 years from now, what is Priya’s present age?
Amit age after 10 years will be 3 times his age 4 years back. What is the present age of Amit?
The current age of Derek is twice that of Eve. 7 years from now, Derek's age will be 1.5 times the age of Fred at that time. If Eve is 5 years younger t...
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