Question

The price of 5 kg of sweets was $180. The price has gone up such that the price of 4 kg of sweets is now $180. What is the percentage increase in price

Answer 1

when price of 5 kg sweets is 180 then prize of 1 kg sweet is 36 . and when 4 kg sweets are of 180 then cost of 1 kg sweet is 45.
so increased money is 45-36 = 9

Answer 2

Price of 5 kg sweets = $180
price of 1 kg sweets = 180/5 = 36
original price of 1 kg sweet is $36
Increased price of 4 kg sweets = 180
Increased price of 1 kg sweets = 180/4 = 45
Increased % = ( increase in value / original value × 100) %
increase in value = 45-36 = 9
original value = 36
percent increase = ( 9/36 × 100)%
=> (900/36)%
=> 25%
hence the required increased percent is 25% .