In a certain race competition of 2100 metres race, Vijay can cover a distance of 1km in 5 minutes. Vijay beats Nandini by 100 metres, what is time taken by Nandini to cover the same distance?

Question

anonymous · Answer

i got it

anonymous · Answer

2100/5=420m per minute so time 5 minutes and nandhini runs in so 2000/5=400m  and then 20/3m per second for 100 meter it takes 15 seconds so answer is 5 min and 15 secs

anonymous · Answer

is it right

anonymous · Answer

shall i close the question to post anther q

anonymous · Answer

@robtobey

anonymous · Answer

Refer to the Mathematica calculation attached.