Question

A shopkeeper reduced the price of a pen from Rs 150 to Rs 120 first. However, after a while he increased the price back to Rs 150. Find :
 (a) percent reduction in first case.
(b) percent increase in second case.

Answer 1

The percent reduction in first case is

= 30/150into 100

=20percent

In second case

= 30/150 into 100

= 20 percent

Please mark it as the brainliest answer

Answer 2

Answer: Decrease = 20%

Increase = 25%

Step-by-step explanation:

Let 120 be X% of 150

(X/100) × 150 = 120

X = 80%

Percentage decrease = 100 - 80

= 20%

Now let 150 be Y% of 120

(Y/100) × 120 = 150

Y = 125%

Percentage increase = 125 - 100

= 25%