Direct and Inverse Proportion

71%

The weight of a piece of wire ( $w\,$ grams) is directly proportional to its length ( $l\,$ cm).

$w\,$ is given by the formula: $w = 30 l$

Find the length of a wire weighing 75 grams.

[2]

71%

The weight of a piece of wire ( $w\,$ grams) is directly proportional to its length ( $l\,$ cm).

$w\,$ is given by the formula: $w = 30 l$

Find the length of a wire weighing 75 grams.

[2]

Direct and Inverse Proportion Questions