Advertisements
Advertisements
प्रश्न
A toy company requires 36 machines to produce car toys in 54 days. How many machines would be required to produce the same number of car toys in 81 days?
Advertisements
उत्तर
Let the required number of machines be x
| Number of machines | 36 | x |
| Number of days | 54 | 81 |
As the number of machines increases number of days required decreases.
∴ They are in inverse proportion,
x1y1 = x2 y2
36 × 54 = x × 81
x = `(36 xx 54)/81`
x = 24
∴ 24 machines would be required
APPEARS IN
संबंधित प्रश्न
Which of the following are in inverse proportion?
Area of cultivated land and the crop harvested
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.
In which of the following table x and y vary inversely:
| x | 5 | 20 | 10 | 4 |
| y | 20 | 5 | 10 | 25 |
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
If x and y vary inversely as other and y = 35, find x when constant of variation = 7.
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?
Which of the following vary inversely with each other?
When the speed is kept fixed, time and distance vary inversely with each other.
If x varies inversely as y and when x = 6, y = 8, then for x = 8 the value of y is 10.
