Question

The price of a notebook was increased by x% . To bring the price to the earlier level,it had to be reduced by 50/3% . Find the value of x​

Answer 1

Answer:

20

Step-by-step explanation:

% Reduction = 50/3% = 1/6

A B

5 6

% increase = 1/5 = 20%

x = 20

Answer 2

Answer:

Step-by-step explanation:

Let the initial price - Rs.100

 

increase = x %  , hence price after increase = Rs. (100+x)              (1)

 

if (50/3) % has to be reduced after increase, amount to be reduced for Rs.    (100+x) = Rs.  100+x/100 × [50/3]               (2)

If amount in eqn. (2) is subtracted from the amount in eqn. (1)  we get the initial price Rs.100

Hence,

(100+x) - 100+x/100 × 50/3 = 100

(100+x)[1 - 50/300] = 100

(100+x) × 250/300 = 100

OR

(100+x) =120

OR

x = 20

Hence 20% was the increase made to initial price

                  HOPE THIS WILL   HELP U