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Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The number of people working and the quantity of work.
Concept: undefined >> undefined
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Simple interest on a given sum and the rate of interest.
Concept: undefined >> undefined
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Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
Concept: undefined >> undefined
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Area of land and its cost.
Concept: undefined >> undefined
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Sales Tax and the amount of the bill.
Concept: undefined >> undefined
The variable x varies directly as y and x = 80 when y is 160. What is y when x is 64?
Concept: undefined >> undefined
l varies directly as m and l is equal to 5, when `m = 2/3`. Find l when `m = 16/3`.
Concept: undefined >> undefined
In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the camp?
Concept: undefined >> undefined
A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes?
Concept: undefined >> undefined
It is given that l varies directly as m. Write an equation which relates l and m.
Concept: undefined >> undefined
It is given that l varies directly as m. Find the constant of proportion (k), when l is 6 then m is 18.
Concept: undefined >> undefined
It is given that l varies directly as m. Find l, when m is 33.
Concept: undefined >> undefined
It is given that l varies directly as m. Find m when l is 8.
Concept: undefined >> undefined
The mass of an aluminum rod varies directly with its length. If a 16 cm long rod has a mass of 192 g, find the length of the rod whose mass is 105 g.
Concept: undefined >> undefined
If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350 steps.
Concept: undefined >> undefined
A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this car?
Concept: undefined >> undefined
From the following table, determine if x and y are in direct proportion or not.
| x | 3 | 6 | 15 | 20 | 30 |
| y | 12 | 24 | 45 | 60 | 120 |
Concept: undefined >> undefined
From the following table, determine if x and y are in direct proportion or not.
| x | 4 | 7 | 10 | 16 |
| y | 24 | 42 | 60 | 96 |
Concept: undefined >> undefined
From the following table, determine if x and y are in direct proportion or not.
| x | 1 | 4 | 9 | 20 |
| y | 1.5 | 6 | 13.5 | 30 |
Concept: undefined >> undefined
If 25 metres of cloth costs Rs 337.50, then what will be the cost of 40 metres of the same type of cloth?
Concept: undefined >> undefined
