Advertisements
Advertisements
Question
What is 15% of 20?
Advertisements
Solution
We have, 15% of 20
= `15/100 xx 20`
= 3
APPEARS IN
RELATED QUESTIONS
Asha got 86.875% marks in the annual examination. If she got 695 marks, find the total number of marks of the examination.
The cost of a scooter depreciates every year by 15% of its value at the beginning of the year. If the present cost of the scooter is ₹ 8,000; find its cost: after 2 years.
A number increased by 15% becomes 391. Find the number.
Express the following as percent: 0.125
Air is an important inexhaustible natural resource. It is essential for the survival of human beings, microbes, plants, and animals. The following table shows the percentage of various gases in the air.
| Contents of air | Percentage (by volume) |
| Nitrogen | 78 |
| Oxygen | 21 |
| Other (carbon dioxide, inert gases, water vapours, etc.) | 1 |
If a certain quantity (by volume) of air contains 4,200 litres of oxygen, find the total quantity of air taken and the amount of nitrogen in it.
A number when decreased by 20% gives 80. Find the number
Yazhini scored 15 out of 25 in a test. Express the marks scored by her in percentage
An average urban Indian uses about 150 litres of water every day.
| Activity | Litres per person per day |
| Drinking | 3 |
| Cooking | 4 |
| Bathing | 20 |
| Sanitation | 40 |
| Washing clothes | 40 |
| Washing utensils | 20 |
| Gardening | 23 |
| Total | 150 |
What per cent of water is used for bathing and sanitation together per day?
What per cent of 1 km is 1000 metres?
Express 45 out of 100 as a percentage.
