Advertisements
Advertisements
प्रश्न
If x and y are in inverse proportion, then (x + 1) and (y + 1) are also in inverse proportion.
पर्याय
True
False
उत्तर
This statement is False.
Explanation:
If x and y are in inverse proportion, then xy = k ...(Constant)
E.g. Let x = 2 and y = 3
∴ xy = 2 × 3 = 6.
Now, x + 1 = 2 + 1 = 3 and y + 1 = 3 + 1 = 4
Then, (x + 1)(y + 1) = 3 × 4 = 12 ...[Not in inverse proportion]
Hence, (x + 1) and (y + 1) cannot be in inverse proportion.
APPEARS IN
संबंधित प्रश्न
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?
Find the constant of variation from the table given below:
x | 3 | 5 | 7 | 9 |
y | 12 | 20 | 28 | 36 |
Set up a table and solve the following problems. Use unitary method to verify the answer.
A group of 3 friends staying together, consume 54 kg of wheat every month. Some more friends join this group and they find that the same amount of wheat lasts for 18 days. How many new members are there in this group now?
If 40 workers can do a project work in 8 days, then _________ workers can do it in 4 days
It takes 60 days for 10 machines to dig a hole. Assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?
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?
If x varies inversely as y, then
x | – | 60 |
y | 2 | 10 |
If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.
A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the work?
The variable x is inversely proportional to y. If x increases by p%, then by what percent will y decrease?