Advertisements
Advertisements
प्रश्न
A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?
Advertisements
उत्तर
Let the number of bottles filled by the machine in five hours be x.
The given information, in the form of a table, is as follows:
| Number of bottles | 840 | x |
| Time taken (in hours) | 6 | 5 |
The number of bottles and the time taken to fill these bottles are in direct proportion. Therefore, we obtain
= `840/6 = x/5`
x = `(840 xx 5)/6`
= 700
Thus, 700 bottles will be filled in 5 hours.
APPEARS IN
संबंधित प्रश्न
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 | 5 | ... | 10 | 35 | 25 | ... |
| y | 8 | 12 | ... | ... | ... | 32 |
A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes?
Rohan can paint \[\frac{1}{3}\] of a painting in 6 days. How many days will he take to complete the painting?
A, B and C can reap a field in \[15\frac{3}{4}\] days; B, C and D in 14 days; C, D and A in 18 days; D, A and B in 21 days. In what time can A, B, C and D together reap it?
Aasheesh can paint his doll in 20 minutes and his sister Chinki can do so in 25 minutes. They paint the doll together for five minutes. At this juncture they have a quarrel and Chinki withdraws from painting. In how many minutes will Aasheesh finish the painting of the remaining doll?
A truck requires 108 liters of diesel for covering a distance of 594 km. How much diesel will be required to cover a distance of 1650 km?
Assuming land to be uniformly fertile, the area of land and the yield on it vary ______
If two quantities x and y vary directly with each other, then ______
30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10 days?
