Interactive practice questions
William recorded a video on his camera. When viewing it on the camera screen, the video appeared in a width to length ratio of $4:3$4:3 respectively.
When he uploaded to his computer, everything appeared wider in the video. What could be the ratio in which the video is shown on his computer?
$20:12$20:12
$8:6$8:6
$16:12$16:12
$8:9$8:9
$10:7.5$10:7.5
Express the following scale as a ratio in the form $1:\editable{}$1:.
1 cm represents $240$240 cm.
A map has been drawn to a scale of $1:7000$1:7000. Find, in metres, the actual distance between two points if the map distance between the points is $8$8 mm.
On a house plan that has been drawn to a scale of $1:100$1:100, the building is drawn to a length of $158$158 mm. What is the actual length of the building?