Reena climbs up 5 stars every second and then climbs down 2 stairs over the next secon. How many second will she take to climb 60 stairs
Answers
Answered by
0
Reena climbs up 5 stars in 1 sec
And she climbs down 2 stars in 1 sec
So in 2 sec she climbs 3 stars
In 1 sec she climbs =3/2 stars
So in 60 sec she climbs up= 3/2×60
90 stara ans
And she climbs down 2 stars in 1 sec
So in 2 sec she climbs 3 stars
In 1 sec she climbs =3/2 stars
So in 60 sec she climbs up= 3/2×60
90 stara ans
rakesh221:
40 ha answer
Sry i have mistaken the question .
It is no of stars given but i thought time is given.
It would be
She climbs 3 stars in 2 sec
So she climbs 1 stars in 2/3 sec , so 60 stars in 2/3×60sec = 40 sec ans.
Similar questions