On Sports Day, if 30 children were made to stand in a column, then 16 columns could be formed. If 24 children were made to stand in a column, then how many columns could be formed?
(a)20
(b)22
(c)29
(d)45
Answer
Answer (as printed): A
Explanation
Total number of children $=(30 \times 16)=480$. $$\text { ∴ Number of columns of } 24 \text { children each }=\left(\frac{480}{24}\right)=20 .$$
Explanation as extracted from the printed page; notation may be imperfect.