Question

If the price of wheat is increased by 20% today, at what
percent should it be decreased tomorrow, so as to bring
down the price back to the original.​

Answer 1

Answer:

83.3£

Step-by-step explanation:

let the original price be Rs. X .

then increased price = X + 20% of X => X + X/5 = 6x/5 .

Difference between both prices = 6x/5 - X

=> X/5 .

percent should decrease = X × 5 / 6x × 100

=> 500/6

=> 83.33

hope it will help you..

Answer 2

Question

1. If the price of wheat is increased by 20% today, at what percent should it be decreased  tomorrow, so as to bring down the price back to the original?

Solution

  Let the original price of wheat be Rs.100

      ⁂ Today's price = Rs.100 + Rs.20 = Rs.120

In order to bring down the price to original i.e to Rs.100; its price should be decreased by Rs.120 - Rs.100 = Rs.20 on Rs.120

   i.e   On Rs.120, the price should be decreased by Rs.20

$\sf{=> On \: Rs.1, \: the \: price \: should \: be \: decreased \: by \: Rs. \dfrac{20}{120}$

$\sf{and \; on \: Rs \: 100, \: the \: price \: should \: be \: decreased \: by \:Rs. \dfrac{20}{120} \times 100=Rs. \dfrac{50}{3}=Rs.16 \dfrac{2}{3}$

         $\sf{ The \: price \: should \: be \: decreased \: by \: 16 \dfrac{2}{3} \%$