Question

4. 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 1

Answer:

Let the number be x.

According to the given condition,

7x+50+40=300

7x+90 = 300

7x = 300-90

7x = 210

x= 210/7

x = 30

Ans: The number is 30.

I hope this is the right answer.

Answer 2

Let the number be equal to x

It tells we we take it seven times over and add a 50 we will be 40 short of 300

so the equation is

7x+50+40=300

7x+90=300

7x=300-90

7x=210

Divide by 7

x=30

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