Question

1.
It'sixty-five percent of a number is 21 less than four-fifth of that number, then the number is
о D a
a) 135
b) 140
c) 145
d) none of these​

Answer 1

Answer:

B.  140

Step-by-step explanation:

65x/100  =  4x/5 -21

15x=2100

x=140

Answer 2

Answer:

Let the number be X

Therefore according to the question

65 × X

___ =(4X/5) -21

100

13X/20=4x-105/5

13X/4= 4x-105

105=4x - (13x/4

105 =16x-13x/4

105= 3x/4

420=3x

x=420/3

x =140

Here is your answer