If a commodity is sold at a 10% discount, the current price is ()% of the original price

If a commodity is sold at a 10% discount, the current price is ()% of the original price

If the original price is 100, the price will be 100 * (1-10%) = 90 after 10% reduction
Then the current price is 90 / 100 of the original price = 90%

One kind of picture album is reduced by 15%, and the current price is the original price______ %．

1-15% = 85%; the current price is 85% of the original price

The price of a product was reduced by 1 / 5 when it was promoted, but now it's back to its original price. What's the price now

The current price is the promotion price
=1 △ 1 / 5
=4 / 5
=5 / 4

If you want to recover the original price after a 10% price increase, you should reduce the price () a.10% B.9% c.9 and 1 / 11 d.11 and 1 / 9
C is nine and eleven percent D is eleven and nine percent

B.9%
10%÷（1+10%）=1/11≈9%

There's an MP3 that, after a 9% increase in price, is reduced by another 9%. The current price is 160 yuan. What's the original price

162

The price of a commodity first increases by 1 / 9 and then decreases by 1 / 9. The current price of this commodity is the same as the original price. Right or wrong

NO x * (1 + 1 / 9) (1-1 / 9) = 80 / 81x

Because of the market price adjustment, the price of a commodity was reduced by 12% at first, and then increased by 4 yuan. The current price is still one ninth lower than the original price. The original price is（

Let the original price be X
0.02x = 4
2x =400
X = 200 yuan

The unit price of a commodity is 210 yuan after 1 / 8 price reduction. How much is the original price of this commodity?

Original price: 210 / (1-1 / 8) = 240 yuan

Four fifths of an apple is equal to the weight of a pear. An apple is one fifths heavier than a pear. The price of a commodity is one tenth lower than the original price. The current price is nine tenths of the original price. The science and technology book is one ninth less than the story book, which means that the story book is one ninth more than the science and technology book. The water consumption in September is one seventh less than that in August, The water consumption in August is one and one seventh of that in September

600X(1-1/10)X(1-1/10)
=600X0.9X0.9
=540X0.9
=486 yuan
A: the current price is 486 yuan

The original price of a commodity is a yuan. The first price adjustment increases by 10%, and the second price adjustment decreases by 10%. After two price adjustments, the price of the commodity is () yuan

1.1a*0.9=0.99a