Question

five years back the telephone charges per minute were RS 2 and now they are RS 1.50 per minute.find how many percent dicrease

Answer 1

Original charge = ₹2

New charge = ₹1.50

Decrease in charge = ₹(2-1.50) = ₹0.5

Decrease percentage = (decrease/original charge)*100

$\frac{0.5}{2} \times 100 \\ = 0.5 \times 50 \\ = 25\%$
Answer the decrease percentage is 25%

Answer 2

Original charge =Rs 2
New charge= Rs 1.50
Decrease in charge =2-1.5
=0.5
percentage decreased= 0.5/2*100
25%

25% Decreased