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Start learning 50% faster. Sign in nowThe first law of thermodynamics is based on the law of conservation of energy, which states that energy cannot be created or destroyed, but can be transferred from one form to another.
Mukesh's age is four times his son's age If, after 8 years, Mukesh will be four times his son's age, how many times his son's age will Mukesh be after a...
A is 2 years older than B while C is 3 years younger than B. The ratio of age of A, 5 years hence and age of B, 4 years ago is 5:4. What was age of C, 1...
Present age of ‘A’ is 40% more than that of ‘B’. If 10 years hence from now, ‘B’ will be 4 years younger than ‘A’, then find the sum of ...
A is younger than B by 2 years. If the ratio of A and B ages is 8:9 respectively, then find the age of A.
The current age of Jerry is three times that of Kim. 4 years from now, Jerry's age will be 2.5 times the age of Leo at that time. If Kim is 4 years youn...
The present age of A is 9/4 times to that of his marriage age. Present age of his brother is 1/3rd of his present age. If A was married 35 years ago the...
8 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:5, respectively. If ‘L’ is 7 years elder to ‘R’, then what will be the age of �...
A man invested a sum of Rs. 25,000. He invested some part at 5% p.a. and remaining at 5.5% p.a.
How much money did he invest at 5% p.a.?
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The present average age of ‘A’ and ‘B’ is 10 years, present average age of ‘A’ and ‘C’ is 6 years and present average age of ‘B’ and...
Five years ago, the ratio of the age of Tarun to that of Ayush was 6 : 11. Umesh is 10 years older than Tarun. Umesh is ten years younger than Ayush. Wh...