Question

(1) 125 g (2) 100 g (3) 250 g (4) 500 g
8. The price of an article was increased by 20%. After some days the price was
reduced by 20%. Is the reduced price of the article more or less than the original
price? By how many per cent?
(1) Less by 10% (2) More by 4% (3) Less by 4% (4) No change in percentage
(2017) 0234
2420​

Answer 1

Answer:

(3)Less by 4%

Step-by-step explanation:

Method 1 (shortcut) - - - (I actually prefer this)

Use this formula for same percentage of increase and decrease = X² / 100

=20*20 /100

=4 % ( price always decreases when you increase and decrease same amount of percentage)

Method 2

let the number is 100

increase 20%=100+20=120

decrease of 20% on 120

=(20/100)×120=24

nett amount 120–24=96

So decrease 100–96=4

decrease of 4 out of 100

percentage of decrease 4%