Math, asked by kashvee1, 1 year ago

I went from my house to a playground 300m away in 10 min. I ran back and reached in 2min. What was my average speed?

Answers

Answered by Rajdeepsingh12

Find the speed ofrom house to ground i.e 300/600 = 1/2 m/sec . now find the speed from ground to house i.e 300/120 = 2.5 m/sec . now add the two speeds and divide by 2 i.e 1.5 m/sec

adityakjha24: You r wrong we don't calculate average speed like this ,you have calculated.

adityakjha24: If we have two speed (say 'x' and 'y' ) then average speed = 2xy/(x+y)

Answered by adityakjha24

for metre/sec multiply 3 with 5/18

hope this will hepl..thanks

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Rajdeepsingh12: Its wrong

kashvee1: how??

Rajdeepsingh12: answer will be 1.5 m / sec

kashvee1: you have written that only

Rajdeepsingh12: That is only correct

Rajdeepsingh12: 3m/sec is wrong answer

adityakjha24: Its not 3 m/s... its 3 km/h .. look carefully..

adityakjha24: In m/s answer will be 5/6 m/s or 0.8333 m/s

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