Advertisements
Advertisements
प्रश्न
If half a meter of cloth costs ₹ 15. Find the cost of `8 1/3` meters of the same cloth
Advertisements
उत्तर
Let the cost of cloth required be x.
| Cost of cloth in ₹ | 15 | x |
| Length of cloth in meters | `1/2` | `8 1/3 = 25/3` |
Cost and length are in direct proportion.
∴ `(x_1)/(y_1) = (x_2)/(y_2), 15/(1/2) = x/(25/3)`
`15 xx 25/3 = x xx 1/2`
`x xx 1/2` = 125
x = 125 × 2
x = 250
∴ Cost of `8 1/3` m of cloth = ₹ 250.
APPEARS IN
संबंधित प्रश्न
The cost of 97 metre of cloth is Rs 242.50. What length of this can be purchased for Rs 302.50?
A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. How much time will A alone take to finish the work?
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
If 600 rupees buy 15 bunches of feed, how many will 1280 rupees buy?
If the cost of 8 apples is ₹ 56 then the cost of 12 apples is _______
A birthday party is arranged in third floor of a hotel. 120 people take 8 trips in a lift to go to the party hall. If 12 trips were made how many people would have attended the party?
Both x and y are in direct proportion, then `1/x` and `1/y` are ______.
The perimeter of a circle and its diameter vary ______ with each other.
Two quantities x and y are said to vary directly with each other if for some rational number k, xy = k.
It is given that l varies directly as m. Find m when l is 8.
