Question

slove the following riddle: 1)I am number, 2)take me seven times over and add a fifty. 3)To reach a triple century you still need forty​

Answer 1

Answer:

30

Step-by-step explanation:

7x+50=300-40

7x=300-90

7x=210

x=30

Answer 2

Answer:

30

Step-by-step explanation:

three century=300

40+50=90

x +90=300

300-90=x

210=x

x=210

divide by 7

take zero away

21 / 7

3

now add zero

your answer is 30

Hope it is helpful