Question

Madhuri ka thought of a number , doubled it and added 20 to it . On dividing the resulting number by 25, she gets 4. What is the number?
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Answer 1

Answer:

Let the number be x

Double the number 2x

Addinf 20 = 2x+20

Now 2x+20 gives 4 when divided by 25

Meaning, 2x + 20 is a multiple of 25

Which makes 2x +20= 4 * 25

2x +20=100

2x =80

X=40

See the below attached answer. Hope it helps you, :)

Answer 2

Answer:

40

Step-by-step explanation:

Let the number be x

she the doubled the number

= x × 2

= 2x

after that she added 20 in it

= 2x+20

by dividing the result by 25 she get 4

= 2x+20/25 = 4

= 2x+20 = 25×4

= 2x = 100-20

= 2x = 80

= X = 80/2

= X = 40.