Question

5. Solve the following riddle.
I am a number
Tell my identity!
Take me five times over
And add a sixty!
To reach a double century
You still need forty!​

Answer 1

Let the number be n.

According to the question, 7n+50+40=300

⇒7n+90=300⇒7n=300−90

⇒7n=210⇒n=

7

210

⇒n=30

Thus, the required number is 30

Answer 2

Answer:

the answer is.......... 30