Maths- Algebra

1.

The length of an edge of a cube is l. The total length of its edges is

3l 4l 6l 12l

2.

The radius of a circle is r. Its diameter is

2r 4r 3r 6r

3.

Which of the following is an expression with numbers only?

x + 1 2x 1 3

4.

Which of the following is an expression with numbers only?

2(4 – 3) + 5 × 6 2 × 3 – 4x 4 × 5 – 10 × 2 – 25 + x x/8

5.

Which of the following is not an expression with numbers only?

2 × (3 + 4) (2 + 3) × 4 2 × 3 + 4 × 5 2x + 1

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