Question

The outer circumference of a circular track is 220 metre. The track is 7 metre wide everywhere. Calculate the cost of levelling the track at the rate of 50 paise per square metre.

Answer 1

$2 \times \frac{22}{7} \times x = 220 \\ x = 35m$

R=35m

r=35-7=28m

area of path=

$\frac{22}{7} \times {35}^{2} - \frac{22}{7} \times {28}^{2}$

1386(m^2)

1386×50paisa

69300paisa

Rs693

Answer 2

Answer:

Mark As Brainliest

Step-by-step explanation:

Ans. in above picture