9.On a sports day, if 30 children were made to stand in a column, then 16 columns could be formed. If 24 children were to stand in a column, then how many columns could be formed?
A. 20 B. 22
C. 29 D. 452
Answer: Option :A
Total number of children = (30 x 16)
‹=› 480.
Number of columns of 24 children each = (480 /24)
‹=›20.
