(A) 1 : 20
(B) 1 : 25
(C) 1 : 40
(D) 1 : 80
The answer is: (A) 1 : 20
Solution
The ratio of 20cm and 4m is: 20cm/4m = 20cm/400cm (1 meter = 100 centimeters)
Hence, ratio = 20/400 = 1/20 = 1:20
(A) 1 : 20
(B) 1 : 25
(C) 1 : 40
(D) 1 : 80
The answer is: (A) 1 : 20
Solution
The ratio of 20cm and 4m is: 20cm/4m = 20cm/400cm (1 meter = 100 centimeters)
Hence, ratio = 20/400 = 1/20 = 1:20