Question

x) The marks in a test decreased from 40 to 30. The percentage decrease is
مر
(d) 10%
(e)25%
c 20%​

Answer 1

Answer:

the percent decrease I'd 40-30/40*100

10/40*100=25%

Answer 2

Step-by-step explanation:

Given :

Original marks = 40

Decreased marks = 30

To find = %decreased

We know that :-

decreased marks = original marks - Decreased marks

= 40-30

= 10

w. k. t :-

decreased% = decreased(100) %/

original

= __10____(100) %

40

= __1000%_______

40

= 25 % ans