The ratio of the length of a school ground to its width is 5 : 2,. If the width is 40 m, then the length is
Answer: (2) 100 m
According to the question,
Let be the length of a school ground is 5X and width is 2X.
Width = 40 m
Then, 2X = 40
X = 40/2 = 20
Then, the length = 5X = 5 x 20 = 100 m.
Hence, the length is (2) 100 m.