Advertisements
Advertisements
प्रश्न
In which of the following table x and y vary inversely:
x | 4 | 3 | 6 | 1 |
y | 9 | 12 | 8 | 36 |
उत्तर
\[ \text{ If x and y vary inversely, the product xy should be constant } . \]
\[\text{ Here, in one case, product = 6 } \times 8 = 48 \text{ and in the rest, product } = 36\]
\[\text{ Thus, in this case, x and y do not vary inversely .} \]
APPEARS IN
संबंधित प्रश्न
A factory required 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?
It x and y vary inversely, fill in the following blank:
x | 12 | 16 | ... | 8 | ... |
y | ... | 6 | 4 | ... | 0.25 |
If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?
Five workers take 12 days to weed a field. How many days would 6 workers take? How many would 15 take?
A printer, prints a book of 300 pages at the rate of 30 pages per minute. Then, how long will it take to print the same book if the speed of the printer is 25 pages per minute?
x varies inversely as twice of y. Given that when y = 6, the value of x is 4. Find the value of x when y = 8
A flood relief camp has food stock by which 80 people can be benefited for 60 days. After 10 days 20 more people have joined the camp. Calculate the number of days of food shortage due to the addition of 20 more people?
If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours.
If x varies inversely as y and when x = 6, y = 8, then for x = 8 the value of y is 10.