Answer:
50% Discount
Step-by-step explanation:
So look to get the discount do the math like this:
30 rupees discount is 15 rupees
∴1 rupees discount is 15/30 rupees
∴ 100 rupees discount is 0.2×100 rupees
⇒50 Rupees
∴The Discount is 50%(Ans:)
50%
15=30x
x=0.5
x=50%
The answer is 90
the answer is 4pi or 12.56637061
the arc length equals 2pi x radius ( known angle (120) / 360 which equals 4pi or 12.56637061