Q. 44.3( 68 Votes )

# Solve the following riddle:

I am a number,

Tell my identity!

Take me seven times over

And add a fifty!

To reach a triple century

You still need forty!

Answer :

Let us assume the number be x

So, according to the riddle given in the question:

(7x + 50) + 40 = 300

7x + 90 = 300

7x = 300 – 90

7x = 210

Now,

We have to divide both the sides by 7

=

7x = 210

x = 30

Hence,

The required number be 30

Rate this question :

150 has been divided into two parts such that twice the first part is equal to the second part. Find the parts.

NCERT - Exemplar MathematicsAnamika thought of a number. She multiplied it by 2, added 5 to the product and obtained 17 as the result. What is the number she had thought of?

NCERT - Exemplar MathematicsAfter 25 years, Rama will be 5 times as old as he is now. Find his present age.

NCERT - Exemplar MathematicsFill in the blanks to make the statements true.

If then x = ________.

NCERT - Exemplar MathematicsThe sum of three consecutive integers is 5 more than the smallest of the integers. Find the integers.

NCERT - Exemplar MathematicsSolve the following riddle:

I am a number,

Tell my identity!

Take me seven times over

And add a fifty!

To reach a triple century

You still need forty!

NCERT MathematicsExpress each of the given statements as an equation.

Mohan is 3 years older than Sohan. The sum of their ages is 43 years.

NCERT - Exemplar MathematicsSeven times a number is 12 less than thirteen times the same number. Find the number.

NCERT - Exemplar Mathematics