Question
Identify the 'green-house
gas'.Solution
Carbon dioxide, methane, and nitrous oxide are all greenhouse gases, contributing to the greenhouse effect and climate change.
A gave 45% of the amount he had to B. B gave 2/3rd of what he received from A to C. After paying Rs. 240 to the taxi driver out of the amount he gets fr...
Tim spends 22% of his monthly income in travelling. He spends 25% of his monthly income on household expenses and spends 36% of his monthly income on fa...
- A laptop was bought at Rs. 30600 after a single discount of 15%. What would be the amount payable if successive discounts of 12% and 5% were offered instea...
In an election between two candidates, winner got 55% of total valid votes. If total number of votes cast were 1000 out of which 6% were invalid, then f...
In an exam of 200 marks, a student scores 136 marks. What percent of marks did he score?
The marks obtained by A is 25% more than B, and the marks obtained by C is 155 more than the difference of the marks obtained by A and B. If C obtained ...
A retailer buys three types of Rice bags at ₹60, ₹40 and ₹20 per kg respectively. He mixes them in the ratio of 1:2:3 by weight and sold them at a...
The marks scored by a boy in three subjects are in the ratio 3 : 4 : 5. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
Out of 840 students in a college, the proportion of boys to girls is 3:4. In the midterm exam, 15% of boys and 10% of girls failed. How many students fa...
A number is first increased by 30% and then decreased by 20%. Find the percentage increase or decrease in the original number.
