Question

The wheel of a car rotated 1000 times in travelling a distance of 1.76 km. Find the radius of the wheel.(take pie 22/7)

Answer 1

Answer:

In rotation of 1000 times ,it covers 1.76km

...........................1...................................(1.76÷1000)×1000m

=1.76m

now

circumference of wheel= 2πr

1.76=2×22/7 ×r

176/100=2×22/7 ×r

1/25=r/7

r=7/25 m

r=7/25 ×100cm

r=28 cm Ans