Advertisements
Advertisements
Question
Meena had enough money to send 8 parcels each weighing 500 grams through a courier service. What would be the weight of each parcel, if she has to send 40 parcels for the same money?
Advertisements
Solution
Let the required weight of the parcel be x grams.
| Number of parcels | 8 | 40 |
| Weight of the parcels in grams | 500 | x |
As the number of parcels increases weight of a parcel decreases.
∴ They are in inverse proportion.
x1y1 = x2y2
8 × 500 = 40 × x
x = `(8 xx 500)/40`
x = 100
Weight of each parcel = 100 grams
APPEARS IN
RELATED QUESTIONS
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?
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
If x and y vary inversely as other and y = 35, find x when constant of variation = 7.
It takes 120 minutes to weed a garden with 6 gardeners. If the same work is to be done in 30 minutes, how many more gardeners are needed?
Two quantities are said to vary ______ with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains constant.
If two quantities p and q vary inversely with each other then ______ of their corresponding values remains constant.
Length of a side of an equilateral triangle and its perimeter vary inversely with each other.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The height of a tree and the number of years.
If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.
