Advertisements
Advertisements
प्रश्न
A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes?
Advertisements
उत्तर
| Distance (in km) | 50 | x |
| Time (in minute) | 60 | 12 |
\[\text{ Therefore, it is a direct variation } . \]
\[50: x = 60: 12\]
\[ \Rightarrow \frac{50}{x} = \frac{60}{12}\]
\[ \text{ Applying cross muliplication, we get: } \]
\[x = \frac{50 \times 12}{60}\]
\[ = 10\]
\[\text{ Thus, the required distance will be 10 km } .\]
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 |
11 men can dig \[6\frac{3}{4}\] metre long trench in one day. How many men should be employed for digging 27 metre long trench of the same type in one day?
In 10 days, the earth picks up 2.6 × 108 pounds of dust from the atmosphere. How much dust will it pick up in 45 days?
A can do a piece of work in 40 days and B in 45 days. They work together for 10 days and then B goes away. In how many days will A finish the remaining work?
Expenditure of a family to number of members of the family are in direct proportion
Every 3 months Tamilselvan deposits ₹ 5000 as savings in his bank account. In how many years he can save ₹ 1,50,000
If two quantities x and y vary directly with each other, then ______ of their corresponding values remains constant.
An auto rickshaw takes 3 hours to cover a distance of 36 km. If its speed is increased by 4 km/h, the time taken by it to cover the same distance is ______.
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 |
A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.

