Question

A car covers a certain distance at a uniform speed of 35 km/hr. If the car had travelled at 42 km/hr, it
would have covered 21 km more in the same time. How much distance did the car travel at the uniform speed of 35 km/hr?​

Answer 1

Answer:

105 km

Step-by-step explanation:

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Answer 2

Answer:

Selina solutions

Grade 6

Biology

Mathematics

Physics

Chapters in CONCISE Mathematics - Middle School - 6

Exercises in Unitary Method

Question 9

Q9) A car covers a distance of 180 km in 5 hours.

(i) How much distance will the car cover in 3 hours with the same speed ?

(ii) How much time will the car take to cover 54 km with the same speed?

Solution

Transcript

Solution:

Distance covered by car 180 km in 5 hours

(i) Distance covered in 1 hour = \frac{180}{5}=36km

5

180

​

=36km

Distance covered in 3 hours = 3 x 36 = 108 km

(ii) To cover a distance of 180 km , time taken = 5 hours

To cover a distance of 1 km , time taken = \frac{5}{180}

180

5

​

To cover a distance of 54 km, time taken = \frac{5}{180}\times54=1.5hours

180

5

​

×54=1.5hours

Step-by-step explanation: