Question

salary of X is 20% more than that of Y. By what percentage is the salary of Y is lesser than X?

Answer 1

Answer:

16.67 %

Step-by-step explanation:

Given,

Let the salary of Y be ₹ 100

and we have salary of X is 20 % more than Y

so, salary of X = 100 + 20 % of 100

= 100+20 = 120

So, salary of X = ₹ 120

Now, salary of Y is less than X by

120 - 20 = 20

So, % = difference/salary of X ×100 %

= 20/120 × 100 %

= 100/6 % = 16.67 %

So, salary of Y is 16.67 % less than that of X.

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Answer 2

Answer:

So, salary of Y is 16.67 % less than that of X.

Step-by-step explanation:

Let the y's income be 100.

Then, X's income = 100 + 20% of 100

                            = 100 + 20/100 x 100

                            = Rs. 120

Change in income = 120 - 100

                             = Rs. 20

Change percentage = change/original value x 100%

                                = 20/120 x 100

                                = 10/3 x 5

                                = 15/3 = 5%

Hence, 5% is y's income less than x.