Question

anyone plz solve this.... class 7 ​

Answer 1

Explanation:

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1) distance = speed × time

2) time = distance / speed

........3/6 = 0.5hour = 30 minutes

.....3) distance = 57336–57321 = 15km

4)1

Answer 2

The answers to the given questions are given as follows:

1. Out of the following, the only correct formula is: Distance= Speed × Time

As we know, speed is inversely related to Time

Speed = Distance/Time

So Time= Distance/Speed

Or, Distance= Speed × Time

2. The time taken by a man to go from his house to the market is 30 minutes.

As we know, Speed = Distance/Time

So, Time= Distance/Speed

So, Time= 3km/6 km per hour

So, the time taken is 1/2 hours or 30 minutes.

3. The distance moved by car in 20 minutes is 15 km.

According to the odometer,

The difference in the distance= 57336km-57221km = 15 km

So the car has moved 15km.

4. The first graph represents a truck at rest.

It is because when a vehicle is at rest, there is no distance covered. Hence, the graph shows a straight line with an increase in time.