Question

1. A man runs at 20 m/min for 4 min., what distance will he run?
A. 20 miles
B. 20 m
C. 8 m
D. 80 m

2. Dan runs a 300 m race with a speed of 3 m/s. What time will it take him to finish the race?
A. 100 seconds
B. 30 seconds
C. 0,25 seconds
D. 100 seconds

Answer 1

Step-by-step explanation:

hope it helps you pls do it once by yourself

Answer 2

Distance run by man is 80 m if he runs at 20 m/min for 4 min.

Dan will take 100 seconds to complete 300 m race with a speed of 3 m/s

Given:

1. A man runs at 20 m/min for 4 min
2. Dan runs a 300 m race with a speed of 3 m/s.

 

To Find:

1. Distance man will run
2. Time taken by Dan to finish the race

Solution:

Distance = Speed x time

Step 1:

Substitute Speed = 20 m/min and time = 4 min and calculate the distance

Distance = 20 x 4

=> Distance = 80 m

Hence , Correct option is  D) 80 m

Distance run by man is 80 m if he runs at 20 m/min for 4 min.

Step 2:

Substitute Speed = 3 m/s and Distance = 300 m and calculate the time

300 = 3 x Time

=> 100 = Time   ( Dividing both sides by 3)

Hence , Correct option is  A) 100 seconds

Dan will take 100 seconds to complete 300 m race with a speed of 3 m/s