Question

In 2018, the price of an article was t10.000. If its price is increased by 25% in 2017, then find the price of this article in 2017.​

Answer 1

Answer:

I’ll start by saying no the answer is not 10% decreased.

I’ll explain the answer by taking an example. It’s VERY SIMPLE.

So whenever you see percentage change type of questions, always solve the question by taking value 100.

Now, say, the price of an article is Rs 100.

Price increases by 20%, i.e. ut increases by Rs 20.(20% of Rs 100), the final price is Rs 120. (As final price= Initial price + Price change)

Question says, the price then decreased by 30%, now the catch here is, we’ll find 30% of Rs 120. As that's the last price calculated. 30% of Rs 120 is Rs 36. As it’s price decrease, the final price will be, 120–36, i.e. Rs 84.

We can easily see, the total decrease is Rs 16 from the initial price. (Rs 100- Rs 84).

Hence the overall percentage change will be 16%.

Step-by-step explanation: