9000072702 | math4u.vsb.cz

SubArea:

Arithmetic sequences

Level:

Project ID:

9000072702

Source Problem:

Accepted:

1

Clonable:

1

Easy:

1

The following numbers form an arithmetic sequence. Find

x

.

10, 20, x

x = 30

x = 40

x = - 20

x = - 10