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Standard XII

Mathematics

Fundamental Principle of Counting

Solve the fol...

Question

Solve the following riddle:
I am a number
Tell my identity.
Take me two times over
And add a thirty six.
To reach a century
You still need four.

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Solution

Let no. be x.

$100 - (2 x + 36) = 4$
$100 - 2 x - 36 = 4$

$2 x = 60$

$x = 30$

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Solve the following riddle:I am a number Tell my identity.Take me two times over And add a thirty six.To reach a century You still need four.

Let no. be x.100−(2x+36)=4100−2x−36=42x=60x=30

Solve the following riddle:
I am a number
Tell my identity.
Take me two times over
And add a thirty six.
To reach a century
You still need four.

Let no. be x.

$100 - (2 x + 36) = 4$
$100 - 2 x - 36 = 4$

$2 x = 60$

$x = 30$