हिंदी

A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes?

Advertisements
Advertisements

प्रश्न

A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes?

टिप्पणी लिखिए
Advertisements

उत्तर

Distance (in km) 50 x
Time (in minute) 60 12
Let the distance be x km.
\[\text{ If the time taken is less, the distance covered will also be less }  . \]
\[\text{ Therefore, it is a direct variation }  . \]
\[50: x = 60: 12\]
\[ \Rightarrow \frac{50}{x} = \frac{60}{12}\]
\[ \text{ Applying cross muliplication, we get: } \]
\[x = \frac{50 \times 12}{60}\]
\[ = 10\]
\[\text{ Thus, the required distance will be 10 km } .\]
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 10: Direct and Inverse Variations - Exercise 10.1 [पृष्ठ ७]

APPEARS IN

आर.डी. शर्मा Mathematics [English] Class 8
अध्याय 10 Direct and Inverse Variations
Exercise 10.1 | Q 11 | पृष्ठ ७

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

A and B can do a piece of work in 18 days; B and C in 24 days and A and C in 36 days. In what time can they do it, all working together?


If 7 kg onions cost 140 rupees, how much must we pay for 12 kg onions?


If x varies directly as y, then

x 12 6
y 48

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?


A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3` hours?


44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?


Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?


Here is a keyboard of a harmonium: What is the ratio of black keys to all keys on the given keyboard.


Here is a keyboard of a harmonium: This pattern of keys is repeated on larger keyboard. How many black keys would you expect to find on a keyboard with 14 such patterns.


The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas.

Litres of gas 1 0.5 2 2.5 3 5
Distance (km) 15 7.5 30 37.5 45 75

Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of gas?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×