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25 percent of a number when subtracted from 100, gives the number itself. Find the number?
Question

25 percent of a number when subtracted from 100, gives the number itself. Find the number?

A.

80

B.

75

C.

32

D.

100

Correct option is A

Given:
25 percent of a number when subtracted from 100.
Solution:
Let the number be x.
100 - x × 25% = x
=> x + 0.25x = 100
=> 1.25x = 100
=> x = 80

Alternate Solution:
Let the number be 100x.
100 - 25% × 100x = 100x
=> 100 - 25x = 100x
=> 100 = 125x
=> x = 100/125
=> 100x = 80 

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