# A train wheel of diameter 49 cm travels a distance of 154 m. How many numbers of revolution does the wheel make?

2
Log in to add a comment

Log in to add a comment

Distance = 154 m = 15400 cm

r=49/2 cm

distance travelled in one revolution=2πr

=2*(22/7)*(49/2)

=154cm

Total distance travelled=154m=15400cm

So. number of revolutions =15400/154

=100

so it takes 100 revolutions