Question
Which inert gas is used as a substitute for nitrogen in
air for deep-sea divers?Solution
Helium is preferred for deep-sea diving because it is inert, has a low narcotic effect under pressure (unlike nitrogen), and reduces the risk of nitrogen narcosis. However, divers must still manage decompression sickness, as helium can dissolve in tissues under high pressure.
In a box, there are some coins and rings which are either silver or gold. If 40% of the objects are rings and 50% of the coins are silver, then find out...
The total number of men to the total number of women in Offices A and B is in the ratio 50:13. Additionally, the number of women in Office A to those in...
The incomes of Priya and Ritu in the current month are in the ratio of 8:7. The ratio of Priya’s income in the previous month to the current month is ...
The third proportional to (4x² – 4y²) and (2x–2y) is:
The ratio of number of girls to number of boys is 3 : 2 in a class of 60 students. The average marks scored by the boys in Physics is 72 and the average...
Three warehouses store goods in the ratio 7:5:6. When 10 more units are added to each, the ratio becomes 9:7:8. What was the original total quantity of ...
- Let’s assume, ‘p’ is directly proportional to ‘q’. Given that when p = 88, q = 44, calculate the value of ‘p’ when ‘q’ becomes 66.
Gagan and Magan have their monthly incomes in the ratio of 9:7 while their monthly expenditures are in the ratio of 6:5, if they have saved Rs. 23,400 a...
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