Question

in arace of 1000 m , kavya runs at a speed of 7.5m /sec and kajal runs at a speed of 8m/secby what time will kajal beat kavya ....give step by step solution​

Answer 1

Answer:

2000sec

Step-by-step explanation:

simple we know speed = distance/time

d= 1000m

s1 = 7.5m/a

s2= 8m/a

s = s2-s1

Answer 2

Answer: The time by which Kajal will beat Kaviya is 8 seconds .

Step-by-step explanation:

The distance to be covered in the race = 1000m

Speed of Kaviya = 7.5 m/s

Speed of Kajal = 8 m/s

Now, we know that speed = distance/time

:. Time = distance/speed

Thus,

Time taken by Kaviya to finish the race = 1000m/ 7.5 ms-1

                                                                 = 133 seconds (approx.)

:.Time taken by Kaviya to finish the race = 2 minutes 13 seconds

Time taken by Kajal to finish the race = 1000m/ 8ms-1

                                                              = 125 seconds

:.Time taken by Kajal to finish the race = 2 minutes 5 seconds

The time by which Kajal will beat Kaviya

= Time taken by Kaviya - Time taken by Kajal

= (133 - 125) seconds

:. The time by which Kajal will beat Kaviya = 8 seconds

I hope this answer helps you. Kindly reply back if there's any problem regarding this answer. Have a great day! :D

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