Question
Which law states that "energy can neither be created nor
destroyed"?ÂSolution
The Law of Conservation of Energy states that energy can neither be created nor destroyed, only transformed.
Initially, a person spends 65% of his salary and saves the remainder. When his salary is increased by 40%, his savings remain unchanged, and he finds th...
Lalit buys wheat at Rs. 20/kg and puts a price tag on it so as to earn a profit of 30%. However, his faulty balance shows 1000 gm when it is actually 60...
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
If a number is added to 52 instead of being added to 25. Approximately what percent of the correct value of the result?
Two students appeared in an exam and one secured 10 marks more than the other. If marks of student who got more marks is 52% of the sum of the marks of ...
A student scores 44% in a test and falls short by 16 marks for passing. The test is out of 250 marks. What is the minimum passing percentage?
40 Litres of water is added to 60 litres of a solution containing 40% alcohol . What is the concentration of alcohol in solution now?
- In a local election between two candidates, the winning candidate secured 72% of the total valid votes and won the election by a margin of 1800 votes. Find...
A person sells each package of snacks for Rs. 13 each. On Monday, he sold 100 packages which was 32 more than that on Tuesday but 21 less than that on W...
- Rohit used to earn Rs. 42,000 per month. His spending to saving ratio was 5:9. After a salary increment, he reduced his expenses by 20% and his savings inc...
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