Advertisements
Advertisements
प्रश्न
In which of the following case, do the quantities vary directly with each other?
विकल्प
x 0.5 2 8 32 y 2 8 32 128 p 12 22 32 42 q 13 23 33 43 r 2 5 10 25 50 s 25 10 5 2 0.5 u 2 4 6 9 12 v 18 9 6 4 3
Advertisements
उत्तर
| x | 0.5 | 2 | 8 | 32 |
| y | 2 | 8 | 32 | 128 |
Explanation:
x = 0.5, 2, 8, 32 and y = 2, 8, 32, 128
If we multiply x with 4, we get the directly required result as same as shown in corresponding y. In this case, as the value of x increases, the value of y also increases.
APPEARS IN
संबंधित प्रश्न
Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?
In which of the following tables x and y vary directly?
(i)
| a | 7 | 9 | 13 | 21 | 25 |
| b | 21 | 27 | 39 | 63 | 75 |
(ii)
| a | 10 | 20 | 30 | 40 | 46 |
| b | 5 | 10 | 15 | 20 | 23 |
(iii)
| a | 2 | 3 | 4 | 5 | 6 |
| b | 6 | 9 | 12 | 17 | 20 |
(iv)
| a | 12 | 22 | 32 | 42 | 52 |
| b | 13 | 23 | 33 | 43 | 53 |
Complite the following table given that x varies directly as y .
| x | 2.5 | ... | ... | 15 |
| y | 5 | 8 | 12 | ... |
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
A truck needs 54 litres of diesel for covering a distance of 297 km. The diesel required by the truck to cover a distance of 550 km is ______.
Two quantities are said to vary ______ with each other if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.
The perimeter of a circle and its diameter vary ______ with each other.
A car is travelling 48 km in one hour. The distance travelled by the car in 12 minutes is ______.
It is given that l varies directly as m. Write an equation which relates l and m.
It is given that l varies directly as m. Find l, when m is 33.
