Question

Question 100

The actual length of a painting was 2 m. What is the length of the photograph if the scale used is 1 mm : 20 cm.

Answer 1

The actual length of the painting was 2 m or $2\times 100=200cm$ [$\therefore$ 1 m = 100 cm]
Scale used in the painting = 1 mm : 20 cm
Hence, length of painting in photograph $=Scale\times ActualSize[\because Scale=\frac{sizedrawn}{actualsize}]=\frac{1}{20}\times 200=10mm$